Winter Fuel MPG Drop - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by Smokem, this thread has received 69 replies and been viewed 3205 times.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 70 (permalink) Old 12-08-2007, 04:08 AM Thread Starter
 
Join Date: Dec 2008
Posts: 2,189
Points: 44,821
Thanks: 0
Thanked 0 Times in 0 Posts
Winter Fuel MPG Drop

Just wondering what everyones MPG has dropped now that the winter fuel is came into play. My 2002 has dropped a solid 1 MPG which I think it bizzare considering my 98.5 will drop 3-5 MPG on Winter fuel.
Smokem is offline  
Sponsored Links
Advertisement
 
post #2 of 70 (permalink) Old 12-08-2007, 04:23 AM
Senior Member
 
sstockton's Avatar
 
Join Date: Jan 2009
Posts: 3,514
Points: 69,198
Thanks: 3
Thanked 64 Times in 60 Posts
Mine is way down. I'm going to try switching the fuel filter out, and I've had my foot in it A LOT more with the new trans. But I hit an all time low of 14.6mpg which is not cool, so I'm hoping a new fuel filter will help me regain some of that.
Sean

2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.

TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)
www.totalperformancediesel.com
sstockton is offline  
post #3 of 70 (permalink) Old 12-08-2007, 03:24 PM Thread Starter
Threadstarter
 
Join Date: Dec 2008
Posts: 2,189
Points: 44,821
Thanks: 0
Thanked 0 Times in 0 Posts
I could have probably saw more of a drop in 2002 but I'm rarely bringing it up above the speed limit so far. Which is the total opposite of my 98.5.
Smokem is offline  
post #4 of 70 (permalink) Old 12-08-2007, 03:31 PM
 
Join Date: Dec 2006
Posts: 333
Points: 3,366
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Mine is way down. I'm going to try switching the fuel filter out, and I've had my foot in it A LOT more with the new trans. But I hit an all time low of 14.6mpg which is not cool, so I'm hoping a new fuel filter will help me regain some of that
Just curious, but what is the corelation between a dirty fuel filter and MPG? I have heard this before and was trying to figure out how it affects mileage
hopeful 6.0 is offline  
post #5 of 70 (permalink) Old 12-08-2007, 04:03 PM
Senior Member
 
sstockton's Avatar
 
Join Date: Jan 2009
Posts: 3,514
Points: 69,198
Thanks: 3
Thanked 64 Times in 60 Posts
You know, I'm really not sure. It has to be some sort of restriction or extra strain on the system that causes it. Because when my fuel filter gets clogged, my power falls off, the smoke isn't as thick and my milage drops too. I think running the bio-d pushed a lot of junk out of my tank and clogged the filter pretty quickly this time around.
Sean

2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.

TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)
www.totalperformancediesel.com
sstockton is offline  
post #6 of 70 (permalink) Old 12-08-2007, 04:07 PM
2nd Gen Guru
 
Mopar1973Man's Avatar
 
Join Date: Dec 2008
Location: New Meadows, Idaho
Posts: 2,641
Points: 54,832
Thanks: 9
Thanked 140 Times in 131 Posts
Garage
Send a message via Yahoo to Mopar1973Man
For winter fuel here in Idaho I've lost about 3-4 MPG roughly...

Check my fuel graphs and fuel logs...
http://mopar.mopar1973man.com/2002%2...2002%20CTD.htm

Michael Nelson - 2002 Dodge Cummins & 1996 Dodge Ram 5.9L Gasser
116K Miles On My VP44 - 4 Years of 2 Cycle Oil Diet! - Mixed at 128:1 Ratio - 25.3 MPG maxed out!
Mopar1973Man is offline  
post #7 of 70 (permalink) Old 12-08-2007, 06:13 PM Thread Starter
Threadstarter
 
Join Date: Dec 2008
Posts: 2,189
Points: 44,821
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by hopeful 6.0
Just curious, but what is the corelation between a dirty fuel filter and MPG? I have heard this before and was trying to figure out how it affects mileage
Quote:
Originally Posted by sstockton
You know, I'm really not sure. It has to be some sort of restriction or extra strain on the system that causes it. Because when my fuel filter gets clogged, my power falls off, the smoke isn't as thick and my milage drops too. I think running the bio-d pushed a lot of junk out of my tank and clogged the filter pretty quickly this time around.
Sean
I don't know how it'd effect a PSD. But the trucks running the VP44 have to really watch it because of the obvoius reasons but also Cummins says that timing advance ,on a VP44, is dependent on the amount of fuel pressure it has. Anything else I really couldn't say.
Smokem is offline  
post #8 of 70 (permalink) Old 12-09-2007, 06:14 AM
Bouncer
Guest
 
Posts: n/a
Points: 0 [Check]
I know mine is a 12v, but I have lost between 3-4mpg so far. This has been the biggest drop I have witnessed in 6 years of having a Cummins powered truck. I am not sure if it is dumb luck or they have done something different to the fuel this year.
post #9 of 70 (permalink) Old 12-09-2007, 12:34 PM
Senior Member
 
Join Date: Nov 2007
Posts: 307
Points: 5,826
Thanks: 1
Thanked 0 Times in 0 Posts
I was wondering why my fuel mileage all the sudden dropped!

So they do something different in the winter to the fuel?

99 2500 dodge cummins, HTS auto trans, quadzilla/edge ez, edge stage 2 nozzles, HX40,special X pump, big line kit, custom dual filter intake, custom exhaust, holley blue, adjustable boost elbow, new intercooler boots, t/c lock up switch, suncoast t/c, leveling kit, new 285 bfg's, all the gauges. New TPS


SINGLES CLUB MEMBER #44
iwannagofast is offline  
post #10 of 70 (permalink) Old 12-09-2007, 01:56 PM
Member
 
Join Date: Oct 2007
Posts: 57
Points: 2,302
Thanks: 0
Thanked 0 Times in 0 Posts
Whats the diff between winter and summer fuel some sort of anti-gelling additive. I down 3 to 4 on mine and have been racking my brain trying to figure out why.
springer is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome