Anything on Propane [Archive] - TheDieselGarage.com

: Anything on Propane


Crazyram
04-06-2006, 08:51 PM
I was wondering about installing propane any inputs!

StrokerAce
04-06-2006, 09:22 PM
Dont, what would you want it for millage or power?

Crazyram
04-06-2006, 09:44 PM
Why dont you like it? I want it for power and any other benefits it could give me.

StrokerAce
04-06-2006, 10:23 PM
Their are alot of better ways to get power. What type of truck do you hav(year, model, tranny type)? Besides you have to keep paying for propane, any millage gains it gives you will be outweighed by the cost of the propane, and i dont think its very safe IMHO

diesel_ram_man
04-06-2006, 10:48 PM
you could try water/methanol injection, i've heard good things about it, a friend of mine is thinking about doing it on his truck.

alldiesels
04-07-2006, 02:07 AM
LP is for cooking steaks and burgers lol
robert
out

Rich
04-07-2006, 02:09 AM
LP...... NEVER on one of my trucks, no way. I really hate that stuff. Heck, get some NOs or better yet, a larger Turbo! :Thumbup:

powershotone
04-07-2006, 02:32 AM
Here are a couple of links to current discussions that contain some actual information.

http://www.thedieselgarage.com/forums/showthread.php?t=13309

http://www.thedieselgarage.com/forums/showthread.php?t=13047

;)

Rich
04-07-2006, 02:34 AM
BTW, if you want a kit, let me know. My buddy has one he'd like to part with. It's got everything with it, including the tank.

Lowboy
04-07-2006, 02:58 AM
Propane is tricky stuff. Most folks overdose on it either by too much pressure/volume or if liquid splashes into the vapor system valve it's detonation time.

I use it but in moderation and have a liquid trap after it leaves the tank. It's not for everybody but if you're careful it can be worth 80 hp in a pinch. Safest ones are the new $ystems like MSD..:popcorn:

John DiMartino
04-07-2006, 03:14 AM
Methanol is nasty stuff,very corrosive! I wouldnt put it in my engine unless i flushed everythign with just water after every use! You can also pop a head gasket very easily if you overdo it with methanol.Propane,why bother,carrying another tank around,filling it for the small gain,it isnt worth it.I'd add fuel thru the pump,with a box or custom tuner,either one voids your warranty.

Rich
04-07-2006, 03:24 AM
one word..........TURBO. Fuel via~ liquid isn't any good. Fuel in a vapor form is good. You have surface area with vapor and some N and O from the turbo. If there isn't enough Oxygen to light the fuel...you'll have smoke and less power. However, add something that'll help it burn like more air (larger turbo) and you've got more HP.

WBV06CTD
04-07-2006, 09:38 AM
Propane is tricky stuff but when used properly it is a nice lift.

My dad owns a propane company and my brother run propane powershot on his duramax with ppe hot + 2 and juice and he has no problems.

I dont think I want any of it but it is a great thing to have on your truck if you want a little boost of hp

fredw
04-07-2006, 12:54 PM
lp on cummins can worh real nice in moderation, buddy has it and gets 30mpg, on his cummins, also takes .4 off the 1/4 mile and .7 when mixed with nitrous

Crazyram
04-07-2006, 03:36 PM
I have a 05 dodge 2500 automatic

StrokerAce
04-07-2006, 06:48 PM
just get yourself a nice programmer or chip like an edge or bullydog, an intake, exhaust and guages. The chip will give you more power then just propane, its cheaper and you dont have to refuel it. It will also increase millage if driven right. If you add propane on top of that itll just eat your tranny anyways. The agreed upon figure is 120HP extra is what your tranny will hold.

Crazyram
04-07-2006, 07:09 PM
I already have the Bully dog chip w/Crazy Larry, Airaid intake, 5" exhaust and a high ram intake. I want more, I run 14.6s in the 1/4.

StrokerAce
04-07-2006, 08:12 PM
Just the crazy larry you have will burn your tranny up very quickly:poke: . If you want more power then your going to need a built tranny(a fully built top of the line will run about 6500), forget the propane and go buy a aftermarket turbo, and maybe some injectors. Besides with the stock turbo your not burning all the fuel from the crazy larry anyways, dumping even more fuel(in this case LP) wont do to much because you cant burn what you have.

powershotone
04-07-2006, 08:22 PM
Propane fumigation done properly and in moderation will help burn some of that fuel. The key/trick is to add a small amount of propane, so as to burn it completely and more of the diesel along with it. Also done properly it doesnt dump 80 hp and the torque all at once, so it is not so hard on the drive train.

My 05 3500 is a fuel pig. The propane takes the fuel mileage from a sickly 13-14 in the city to over 19 mpg. Net gains are probably around 3mpg. My tires 35's and the 2 in lift kit in the front probably don't help it much.:shrug: It is quick though, without anything but the propane and intake and exhaust, I pull 2 lengths on my buddy's 6.0 with

It is not for everyone obviously, but those that actually use it, are very pleased with it. :sly:

RedRiceEater
04-07-2006, 08:56 PM
If you run it constantly (I don't) at low levels you will increase mileage more than trying to use it as a fuel replacement (since you will stay in the throttle more.) When you have the LP turned up high enough to cause an increase in smoke you adding more power but decreasing fuel mileage (for obvious reasons). If done at an extremely low level you will just be making your engine more efficient. At higher levels it is more efficient and adds more power.

StrokerAce
04-08-2006, 04:20 AM
Propane fumigation done properly and in moderation will help burn some of that fuel. The key/trick is to add a small amount of propane, so as to burn it completely and more of the diesel along with it. Also done properly it doesnt dump 80 hp and the torque all at once, so it is not so hard on the drive train.

My 05 3500 is a fuel pig. The propane takes the fuel mileage from a sickly 13-14 in the city to over 19 mpg. Net gains are probably around 3mpg. My tires 35's and the 2 in lift kit in the front probably don't help it much.:shrug: It is quick though, without anything but the propane and intake and exhaust, I pull 2 lengths on my buddy's 6.0 with

It is not for everyone obviously, but those that actually use it, are very pleased with it. :sly:
You still have to pay for the propane though, and the 800 dollar kit (maybe more for that new MSD kit) so tell me how long it would take to get your money back???

RedRiceEater
04-08-2006, 06:29 AM
A long time running moderate amounts of propane. But you get more power and better mileage. That's the real benefit.

powershotone
04-08-2006, 04:36 PM
Im not sure that you ever get your money back for performance/power adding items. how long does it take to pay back a turbo??? or injectors or a box for that matter? 80 hp for $800 is $1 per hp!:sly: And that's about all the math I can do!LOL

(added on edit.........$10. per hp :eek: :sorrysign: .....thanks for catching that!)

If you are adding it for mileage........ here's a calculation that I took off of another site when someone was replying to a question such as yours:

On recent trip, with no propane 275 miles, put in 30.5 gal at 2.46/gal= 27 cents per mile for fuel. Same trip with propane 275 miles, 21.2 gal diesel 2.46/gal and 7 gal propane at 1.55/gal= 23 cents per mile. On average I burn around 80 gal propane per month. Last month my combined fuel bill (tractors and trucks) was $3794.99. If you think .04/mile isn't relevant then you probably won't mind helping me with the fuel bill.

Rich
04-08-2006, 05:10 PM
I think a good turbo would do the same thing..... fuel is fuel until ya burn it, then it's power.

RedRiceEater
04-08-2006, 05:52 PM
I think a good turbo would do the same thing..... fuel is fuel until ya burn it, then it's power.

I've got to say yes and no. LP changes timing. Making for a longer burning cycle which theoretical increases efficiency on the diesel that is pumped into the cylinder. When more LP is pumped in than is needed just to make it a little more efficient then it becomes more of a "wasted fuel" without a larger turbo or Nitrous.

The real savings that come from an LP system are the price per gallon of each fuel. Right now #2 is 2.59-2.69 depending on which way the wind is blowing. LP is a consistant $2.

At the rate I burn LP (10 gallons per 40 gallons of #2) it will take me a long while to get enough savings to pay for the LP kit. However, I have ~80hp or so and a little better mileage than I would without it.

I would base my decision on whether to buy an LP kit on price of the fuel in your area. If LP and #2 are fairly close (on average) in price I wouldn't recommend it. Just buy a bigger tune. If you can save some money and postpone fill ups... its worth the consideration.

I will be going with a larger tune soon but will keep my LP to run on a 2nd smaller tune for mileage and towing purposes.

StrokerAce
04-08-2006, 09:19 PM
Im not sure that you ever get your money back for performance/power adding items. how long does it take to pay back a turbo??? or injectors or a box for that matter? 80 hp for $800 is $1 per hp!:sly: And that's about all the math I can do!LOL

If you are adding it for mileage........ here's a calculation that I took off of another site when someone was replying to a question such as yours:

On recent trip, with no propane 275 miles, put in 30.5 gal at 2.46/gal= 27 cents per mile for fuel. Same trip with propane 275 miles, 21.2 gal diesel 2.46/gal and 7 gal propane at 1.55/gal= 23 cents per mile. On average I burn around 80 gal propane per month. Last month my combined fuel bill (tractors and trucks) was $3794.99. If you think .04/mile isn't relevant then you probably won't mind helping me with the fuel bill.

People dont by injectors, a new turbo, and a box for millage:umno: , they buy it for power. People that want millage do buy boxes though, on my box (bully dog triple dog 120HP) i payed 450, so thats only 23 cents per horse power, so if your paying 800 for a box your getting riped off. Going of what that guy said, it would take 33175 miles to break even, figuring 1327 dollars for ATS's propane system and 1.55 a gallon for propane, which i know that around here its about 2.00 a gallon, in addition to that, the cost would go up even more during the "heating months". I know that my bullydog has raised me about 2 MPG so my old milage was 16 so to go 1000 miles on that it would take 62.5 gallons, at that guys rate of 2.46 a gallon it would cost 153.75. Now with the chip it raised it to 18mpg so it would take 54.05 gallons to go 1000 miles wihich would be 132.96 dollars. Every thousand miles you would save 20.79 dollars. It would take 21,645 miles to pay for itself, but you wouldnt have to worry about fluctuating propane prices, so you tell me whats the better buy?? :smoke:

fordt
04-08-2006, 09:40 PM
80 hp for $800 is $1 per hp!:sly: And that's about all the math I can do!LOL
That would be $10/ hp:poke: LOL


on my box (bully dog triple dog 120HP) i payed 450, so thats only 23 cents per horse power
That would be $3.75/ hp:poke: LOL

Just, makin' sure everyone knows.:poke: LOL :popcorn:

StrokerAce
04-08-2006, 09:49 PM
oops i did it backwards, at least i have an excuse(still heavily medicated for the pluricy:Pshyco:) but either way its cheaper then pane, and saves more money then pane. My truck actually went up to about 3mpg more but i was going conservitive. Theirs only 2 things propane is good for, barbacues, and torches:Thumbup:

Rich
04-08-2006, 09:49 PM
No payne in my torch...too cold. Give me regular, plasma or a gas torch and we'll talk! .....ever seen a gas torch? Uh, holly smokes.they are B A D !!! Nothing works better outside for LARGE parts.

partsguy662
04-08-2006, 09:54 PM
Propane has many myths and theories about it...most of them are caused by people that know nothing about it to begin with....(Rumors about what it does/doesn't do..It's voodoo to some people)
powershotone knows propane. Listen to what he has to say, you might just learn something.

StrokerAce
04-08-2006, 10:32 PM
He might know alot about propane, but im saying its not worth it for millage gains. A programer/chip is much better then propane. Propane might get you more miles per gallon but your still going to end up either loosing money, or not saving enough to make it worth while. Besides that its a hassle, you have to take you tanks to a place that will fill them(since most people dont just trade theirs in for a full one) unhook it, get it filled back up, pay for the propane(which i doubt you can get for 1.55, but even if you can it will eventually go up, like i said here its almost 2.00 a gallon) We just bought 1000 gallons of propane for 1.87, and thats because it was purchased in a very large quanity. Like i said, it takes 30K to pay for propane(figuring 1.55 a gallon, which here its much higher) and your only saving 4 cents a gallon, with a programmer/chip you dont have to go through any of that crap and you pay for it in 20K miles i dont see how its any better what so ever. Besides you can get more then 80HP out of a programmer/chip anyways. If you want pane for millage its a waste IMHO, now if your trucks hoped to the hilt and you want more power thats a different story(not that i would use it anyways).

RedRiceEater
04-08-2006, 10:41 PM
The LP kit I have only ran me around 700 to start with and I have a 120hp tune on top of that. Could I get a bigger tune to get the same power? Yes. Am I going to? Yes. Does this work well? Yes. For this power level I have I doubt I would be able to achieve the same mileage with just a tune.

Smokem
04-08-2006, 10:41 PM
I think a good turbo would do the same thing..... fuel is fuel until ya burn it, then it's power.

That's a great way to put it.

StrokerAce
04-08-2006, 10:48 PM
The LP kit I have only ran me around 700 to start with and I have a 120hp tune on top of that. Could I get a bigger tune to get the same power? Yes. Am I going to? Yes. Does this work well? Yes. For this power level I have I doubt I would be able to achieve the same mileage with just a tune.
Nope, you probably wouldnt, but you wouldnt be paying for that extra millage either. It would cost you less because you wouldnt be filling that propane up all the time at 1.90$ something. After you buy programing its all yours, and you wont be putting money into it all the time, propane is like renting a home, your always gona have to pay to use it.

partsguy662
04-08-2006, 10:51 PM
Nope, you probably wouldnt, but you wouldnt be paying for that extra millage either. It would cost you less because you wouldnt be filling that propane up all the time at 1.90$ something. After you buy programing its all yours, and you wont be putting money into it all the time, propane is like renting a home, your always gona have to pay to use it.

Allright, I'll bite...Why are you so dead set against propane anyway? It sure as hell isn't because you have used it on something you own...So, what's the story here.

RedRiceEater
04-08-2006, 10:55 PM
Nope, you probably wouldnt, but you wouldnt be paying for that extra millage either. It would cost you less because you wouldnt be filling that propane up all the time at 1.90$ something. After you buy programing its all yours, and you wont be putting money into it all the time, propane is like renting a home, your always gona have to pay to use it.

Do you read what you post or do you just type? I mean seriously... You obviously have no idea what you are talking about when it comes to LP. All you are saying is what you think or what you've heard. Nothing from experience.
But if you want to go down this road... Is diesel free? If it is free out there I'm moving. Do you just fill your truck up once and trade it before you run out of diesel? I highly doubt it. With all of this said why would you expect an alternate fuel source to do the same? Diesel will always run out of your tank and you will have to fill it up as well.

StrokerAce
04-08-2006, 10:59 PM
I have alot of friends that use propane on their vehicles, and just because their tank of fuel last longer they think their saving money, when in reality their not saving enough to even pay for the setup, they constantly have to find a place that will fill their bottles because most places will only exchange them which can be a real pain. I just dont see the point of getting the kit for millage when you can just get a programmer/chip for less money, more power, and a cheaper increase in millage because you dont have to pay money to keep it working. :shrug: RedRice, diesel isnt free, and neither is LP, so why should you pay for both of them? Like i said before 31K miles to pay for a propane setup, and only 20K to pay for a programer, whats so hard to understand about that?

Deezle1
04-08-2006, 11:00 PM
no offence guys, but cut the shyt. If you dont have facts, quite frankly dont say anything.

Dom

RedRiceEater
04-08-2006, 11:07 PM
There are other benefits to LP than just mileage. Cleaner burning fuel leaves your oil cleaner as well.

An LP kit can and will pay for itself over time. Just like a programmer will.

As for finding a place to get your tank filled, well honestly that's something I would look into BEFORE I bought the kit. I don't have any trouble getting LP here locally.

I think I've made my points on a cleaner more efficient burn, better mileage, and more power. Unless there is a question directed specifically toward me I'll stay out of this thread.

partsguy662
04-08-2006, 11:12 PM
I'm going to add this, and I will disappear from this thread:
Talking about propane is something that I have seen very few people speak intelligently about. Why? Most people have no idea about the stuff. Unless you've worked with it in a internal combustion engine, you have no clue about it. The guy that started this thread was/is looking for FACTS and OPINIONS about propane. I would presume that he wants FIRST HAND KNOWLEDGE from someone that has actually had propane on his or her truck. Having a guy in the same county as you are in and seeing him drive into your local fast food joint with the propane tank in his truck and knowing his first name doesn't mean you know a damn thing about his propane setup. Let the people that know something about it talk about it, and sit back and learn from the experts.

Deezle1
04-08-2006, 11:18 PM
good post ding dong....

fordt
04-08-2006, 11:20 PM
EVERYONE! 1-2-3-4 I'm okay, I'm over it LOL

sstockton
04-08-2006, 11:31 PM
Ok, well I am another guy that doesn't know his propane facts, but i've done a little research. With my BOX on my truck, I see about 2mpg, unless I'm using it for the added power. I only get that milage if I drive it like a my grandpa, and actaully come to think about it, he has an identical truck only stock and gets the same milage as me without any mods, I do a a bit better than he does on the freeway actually, but around town nothing.

It sounds like what I'm hearing about the propane is you kind of get both the milage and the power at the same time, like even if your foot is in it, you will still see some improved milage. Am I making False conclusions here, or is this true? Seems like you may need first hand experience to answer that question.
Sean

StrokerAce
04-08-2006, 11:58 PM
There are other benefits to LP than just mileage. Cleaner burning fuel leaves your oil cleaner as well.

An LP kit can and will pay for itself over time. Just like a programmer will.

As for finding a place to get your tank filled, well honestly that's something I would look into BEFORE I bought the kit. I don't have any trouble getting LP here locally.

I think I've made my points on a cleaner more efficient burn, better mileage, and more power. Unless there is a question directed specifically toward me I'll stay out of this thread.

Cleaner oil?? I've never had a problem with dirty oil. Ive used the numbers and shown that a programer/chip is cheaper to buy then a propane injection kit, and that it pays it self off quicker(30Kmiles vs. 20Kmiles). You must not travel much either, the friends i know that have propane know where to get it around this area, but when your actually towing a long distance from home its a pain to find a place to get it. So with a programmer you get better millage, more power then propane, and its a one time purchase, the cost per horsepower is also less. You also dont have to worry about fluctuating LP prices. I know id be pissed if i bought a propane kit and the price of LP went up so much that i would be loosing money running it(which i think it already is). I think ive made all my points clear as well.

RedRiceEater
04-09-2006, 12:06 AM
Cleaner oil?? I've never had a problem with dirty oil. Ive used the numbers and shown that a programer/chip is cheaper to buy then a propane injection kit, and that it pays it self off quicker(30Kmiles vs. 20Kmiles). You must not travel much either, the friends i know that have propane know where to get it around this area, but when your actually towing a long distance from home its a pain to find a place to get it. So with a programmer you get better millage, more power then propane, and its a one time purchase, the cost per horsepower is also less. You also dont have to worry about fluctuating LP prices. I know id be pissed if i bought a propane kit and the price of LP went up so much that i would be loosing money running it(which i think it already is). I think ive made all my points clear as well.

I guess you are pissed diesel prices went up after your dad bought the truck and you drive it for him. I do travel farther distances I just make sure I fill my tank up before I leave... wow what a thought. You haven't shown anything to me in numbers that I don't already know. I have both remember? Your reasoning against LP isn't based on any facts or personal experience. To me that makes it worthless. Cleaner oil would be extending the life of your oil between oil changes.

Kid you've got me sitting here asking myself why I am even wasting my time explaining this to you. You obviously don't understand what you are talking about and you are decreasing the likelyhood anyone will gain anything from this thread when you are filling it up with 3rd or 4th generation incorrect information.

sstockton
04-09-2006, 12:38 AM
Ok, I really just have 1 question for you guys actually running propane, If you drive with your foot in it, lets say a whole tank of diesel spent hot roding it, do you still see decent milage, and what kind of milage do you see. If I spend a whole tank driving like a jerk, on stage 3x5 in my truck which is about 80hp I'm only getting 12-13ish, its the sad fact of dumping more fuel in for hp.
Sean

RedRiceEater
04-09-2006, 12:40 AM
Ok, I really just have 1 question for you guys actually running propane, If you drive with your foot in it, lets say a whole tank of diesel spent hot roding it, do you still see decent milage, and what kind of milage do you see. If I spend a whole tank driving like a jerk, on stage 3x5 in my truck which is about 80hp I'm only getting 12-13ish, its the sad fact of dumping more fuel in for hp.
Sean
On 120hp diablo and with around 80hp increase of LP. Driving the entire time like an 18 year old know it all punk... I get somewhere around 15 or so. Driving like someone who has some sense I'll get around 22. That's no towing and no WOT take offs.

On edit: I'd like to add that without LP I get around 13 driving like a jackass and around 18-19 driving with some sense.

StrokerAce
04-09-2006, 12:42 AM
You dont know me so dont talk to me like you do. My "daddy" didnt buy this truck, I bought this truck, thats right me, and only me. The only thing my father did was cosign, i make the payments, i buy the insurance so dont start spouting off about someone when you have no idea who they are. By the way i work my arse of to keep it. I know you might be a little jealous that someone thats 18 has a new truck and you dont, but get over it. So you can stop with the kid comments, and the "your daddy" comments, because being only 6 years my senior isnt all that much. And your the one saying im the one thats decreasing the likelyhood that someone will get something from this, remember its you that started the personal attack, and that it was you that said you wouldnt add anything more to this unless a specific question was asked of you, so dont try and turn this around.

RedRiceEater
04-09-2006, 12:47 AM
You dont know me so dont talk to me like you do. My "daddy" didnt buy this truck, I bought this truck, thats right me, and only me. The only thing my father did was cosign, i make the payments, i buy the insurance so dont start spouting off about someone when you have no idea who they are. By the way i work my arse of to keep it. I know you might be a little jealous that someone thats 18 has a new truck and you dont, but get over it. So you can stop with the kid comments, and the "your daddy" comments, because being only 6 years my senior isnt all that much. And your the one saying im the one thats decreasing the likelyhood that someone will get something from this, remember its you that started the personal attack, and that it was you that said you wouldnt add anything more to this unless a specific question was asked of you, so dont try and turn this around.

The kid remarks weren't referring to age, but how you act. I am 6 years older than you and I bought this truck and my mustang so don't even go there. You act like a child I will treat you like one. You act like an adult I will treat you like one.

BTW please point out where I started personal attacks. You are in a thread putting down a power adder that I happen to run and like. I then inform you of how you are incorrect. And just so you know when you quote a post of mine and comment on it, I think that its directed toward me.

While you are at pointing things out show me where you added anything useful or knowledgable to the thread.

StrokerAce
04-09-2006, 01:00 AM
Direct personal insults to me:
"Driving the entire time like an 18 year old know it all punk"

"get around 13 driving like a jackass"(although i really dont mind this one since its under my name)

"I guess you are pissed diesel prices went up after your dad bought the truck and you drive it for him."

I did add something legitimate, i added that it would take 30K miles to pay for a propane setup(ATS kit was the first i found complete with a tank) and only 20K compared to a chip(which i used my 450$ bullydog). I added that propane prices in my area are much higher then 1.55 a gallon, i cant vouche for other areas because i just know what ive seen. So i added that here it would definatly not be worth it. I also added that it would be a pain(for me anyways) to deal with the propane tank all the time, seeing how its not just flip the fuel door open, unscrew the cap and start pumping. I also added that in the winter the price of propane would rise because of the demand. Besides I'm not the one making [I]childish[I] insults to people.

partsguy662
04-09-2006, 01:03 AM
Direct personal insults to me:
"Driving the entire time like an 18 year old know it all punk"

"get around 13 driving like a jackass"(although i really dont mind this one since its under my name)

"I guess you are pissed diesel prices went up after your dad bought the truck and you drive it for him."

I did add something legitimate, i added that it would take 30K miles to pay for a propane setup(ATS kit was the first i found complete with a tank) and only 20K compared to a chip(which i used my 450$ bullydog). I added that propane prices in my area are much higher then 1.55 a gallon, i cant vouche for other areas because i just know what ive seen. So i added that here it would definatly not be worth it. I also added that it would be a pain(for me anyways) to deal with the propane tank all the time, seeing how its not just flip the fuel door open, unscrew the cap and start pumping. I also added that in the winter the price of propane would rise because of the demand. Besides I'm not the one making [I]childish[I] insults to people.

:cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry:
:rolleyes:

sstockton
04-09-2006, 01:04 AM
Have you tried driving hard with just the propane, because I'm thinking it might do a little better than 15mpg, maybe not though. In order to judge cost effectiveness, you really have to know all the variables, and I'm sure it varies from truck to truck, brand to brand. Seems like you really can't know unless you try it right.

Second question, does your box/programmer whatever it is adjust timing, or just add fuel.
Thanks,
Sean

RedRiceEater
04-09-2006, 01:06 AM
Those mileage situations weren't directed toward you, I have the guts to call you out by name if I am talking to you or about you.

As for the 30k vs 20k on paying off a mileage increase... The propane kit you used was overpriced. In either case I see it as irrelevant. The trucks are good for 400-500k miles.

For me one added benefit is time saved. I don't have to stop as often to fill up on #2.

If you don't like taking the tank out of the truck to get LP filled up you can add a remote fill.

As for fluctucations in LP prices that is also irrelevant as diesel fluctuates just as much if not more.

RedRiceEater
04-09-2006, 01:09 AM
Have you tried driving hard with just the propane, because I'm thinking it might do a little better than 15mpg, maybe not though. In order to judge cost effectiveness, you really have to know all the variables, and I'm sure it varies from truck to truck, brand to brand. Seems like you really can't know unless you try it right.

Second question, does your box/programmer whatever it is adjust timing, or just add fuel.
Thanks,
Sean

When I said driving like a jackass I meant it. 10-15 miles trips tops. Wide open at ever take off. Blowing smoke just because.

As for the programmer it adds fuel and timing. That's the reason I can't run the LP full throttle. I can only use it at about 60-65% of the way open. If I remove the programmer all together and run straight LP I can use it at its max. When I did that I ran 150 miles on 10 gallons of LP and ~575 miles on 22 gallons of #2. I could have performed much better given I had a larger tank.

fordt
04-09-2006, 01:16 AM
All right, it's gone far enough. Back on topic with no personal attacks or it get's locked. Some of you guys know me on here, I would HATE to do that.
I think all sides have time to vent.

partsguy662
04-09-2006, 01:17 AM
fordt is "still" a poo poo head...LOL

sstockton
04-09-2006, 01:18 AM
Yeah, not trying to take sides here, but I've figured that the cost of the propane the rate at which people with similar trucks use propane and the milage increases that they are seeing, plus the price of the set up at around 700 dollars, it would take me about 21,7xx miles to pay for the system. So that is about 6 months. But once again, I can't back that up from experience.
Sean

fordt
04-09-2006, 01:19 AM
I bought a bullydog propane thingy used for my 2003 6.0L if I can find it I'd give it anyone willing to pay shipping. I never tried it because I could not figure out how to hook it upLOL

RedRiceEater
04-09-2006, 01:22 AM
Yeah, not trying to take sides here, but I've figured that the cost of the propane the rate at which people with similar trucks use propane and the milage increases that they are seeing, plus the price of the set up at around 700 dollars, it would take me about 21,7xx miles to pay for the system. So that is about 6 months. But once again, I can't back that up from experience.
Sean

If you factor in time saved, cleaner burning engine, cleaner oil. I think its well worth it. I've been running LP for nearly a year now and I don't have any complaints at all.

RedRiceEater
04-09-2006, 01:23 AM
I bought a bullydog propane thingy used for my 2003 6.0L if I can find it I'd give it anyone willing to pay shipping. I never tried it because I could not figure out how to hook it upLOL

LOL don't give up so easily. It would probably only take you an hour or 2 to hook it up. Then you could either tell me how wrong I am or you could agree with me. :popcorn:

sstockton
04-09-2006, 01:48 AM
If you factor in time saved, cleaner burning engine, cleaner oil. I think its well worth it. I've been running LP for nearly a year now and I don't have any complaints at all.
That is good to hear, I also like hearing that it can be run with other timing advancing elements, because my biggest concern was the compatiblity with other elements that I am already using and happy with on my truck
Sean

Lowboy
04-09-2006, 03:11 AM
If I was truly worried about fuel cost in my truck I change to a VW TDI.:shrug:

I run propane in an early Corvette with a dual fuel system. The triple ball tank went behind the seat and crammed full I had a range of over 600 miles. In the 1960's people would just shake their heads. :D The dual fuel systems would lose about 10% fuel mileage using 100% propane vs straight gasoline.

Propane only weighs 4.24 lbs a gallon compared to gasoline at 6 and diesel at about 7 lbs a gallon. Weight per gallon btu (heat factor) propane has the advantage if you were looking to build a long range vehicle.:Really:

Mixing it with diesel gives a definite advantage if you do it right. At part throttle constant fuel rates egt's will drop with metered amounts of propane. That's a win anyway you look at it. Anytime you can get the combustion process to push the piston instead of blowing heat out the exhaust manifold the motor is more efficient.

Propane is really more of a performance mod than a mileage mod although mileage will increase. Treat it just like any other performance mod, it's fun to do and can be expensive if you screw up.

--Paul :popcorn:

RedRiceEater
04-09-2006, 03:55 AM
Propane is really more of a performance mod than a mileage mod although mileage will increase. Treat it just like any other performance mod, it's fun to do and can be expensive if you screw up.

:Thumbup: :thanks:

Rich
04-09-2006, 04:02 AM
I wonder if having an over-bored, squared or stroked motor makes a difference? I'm sure the timing is more critical on the wide pistions but I wonder...:shrug: .... Propane is "burning" in the chamber unlike NOs which adds Oxygen to the fire. Two different fuels burning at two different rates could be a handful.

Lowboy
04-09-2006, 04:46 AM
Good point Rich, I had some notes on that.

The percentage of fuel burned from a typical 80% for a well-tuned diesel engine running on diesel fuel alone, to 93-95% with the addition of LPG.

The diesel ignites at a lower temperature than propane. The flame front from the diesel actually lights the propane up. The propane vapor enhances the diesel burn so more complete burn in the cylinder and not out in the exhaust manifold. Add a little propane and pass any smog test.:HappyMugs

Less egt's and more push to the crankshaft. :Thumbup: But only up to a point of propane volume. Too much is counter productive.

Diesel fuel nozzle technology today is just beginning to come around. We have a LONG way to go.. 80% fuel burned isn't very good and so we have :LAME: the egr's..

--Paul

Rich
04-09-2006, 05:01 AM
I agree that we could figure out a way to burn better..but the Nitrogen in the air causes the real problem..sort'a. NO3 or oxides are all the fuss. These bonds do some dammage to that thin upper layer we all know as the "Ozone" layer, like skin...not much there but it does a lot. Basicly, the Diesel gets really hot, burns the fuel and makes this bad stuff. Well, if you add raw Diesel fuel "after" the combustion event the exhaust EGT's are lower and the raw fuel will help absorb the problem. ........Has anyone noticed the new "scrubbers" for Diessels? Anyone notice the "fuel-line" thats run'n to them.... yep, raw fuel burned @ the scrubber or something. Doesn't that just beat all? :nunu:

Complete burn is quite possible.... "Clean" burn isn't possible on Diesel only. However, I believe the "B-something" will have a positively GREAT effect on Diesel emmissions. ......then again, I could be wrong. :shrug:


..What's funny? What's funny is that the air coming OUT of an 08' Diesel could be cleaner than the air going IN the Diesel! ....strange. Then again, I said nothing about Oxygen! LOL

powershotone
04-10-2006, 12:52 PM
Lowboy,

It's nice find people who have done their homework :HappyMugs