help with type of diesel fuel for 96 F350 - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 10-20-2007, 05:50 AM Thread Starter
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Question help with type of diesel fuel for 96 F350

I live in a place where it is hard to get #2 diesel fuel. Can I use #1 (which is readily available)? What if additives are added?
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post #2 of 4 (permalink) Old 10-20-2007, 01:00 PM
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I thought they were the same just the Number 1 was an offroad fuel that was not taxed.

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post #3 of 4 (permalink) Old 10-20-2007, 05:53 PM
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ok, i've been doing a little research on fuel since i bought a diesel and here is my 2 cents. keep in mind i am not a professional, so correct any errors you notice. diesel fuel is produced in 4 primary grades, d1, d2, d3, and d4. d3 to the best of my knowledge isn't produced in large consumer amounts, and d4 is only a little lighter than industrial fuel oil and , though it has a similar ignition quality to 1&2, is quite a bit to thick to work well in a consumer vehicle engine and is used mostly in low to medium sped engines that stay at the same speed for long periods of time, like power stations. d1 and d2 are very similar and are the primary fuel used in consumer vehicles, but the biggest differences are viscosity, pour point, and cetane number. d1, sometimes labeled at the pump as "premium diesel", has a cetane number of 44-45 and is less viscus and has a lower pour point than d2. a lower pour point means it won't gel until it reaches a lower temperature than d2. viscosity is the resistance of a fluid to flow, and d1 being less viscus means it is a thinner fuel and provides less lubricating qualities for the engines moving components. the cetane number is a rating of how easy the fuel ignites. higher the cetane rating the lower the temp the fuel will ignite at. because d1 has less btu's per gallon (british thermal units = heat required to raise 1 pound water 1 degree fahrenheit) than d2 it is not able to produce as much power and results in lower miles per gallon. d1 is used in northern states during the winter because of it's lower gel temp. with that said, d2 has a cetane rating of 40 on average and is the primary diesel fuel sold at consumer pumps. d2 has a higher pour point and is more viscus that d1 meaning that it will lubricate the moving parts of your engine leading to a longer engine life. it also has a LOWER cetane rating meaning it requires more btu's to ignite resulting in more power and higher mpg's. and since i've wrote this much i'll touch on the addition of motor oil and kerosene to fuel. adding motor oil doesn't benefit you in any way really, in fact it may actually damage your injector pump and clog your fuel filter. some companies add kerosene to their fuel while it is in bulk form prior to sale, therefor you don't know how much is already in your fuel and adding more can actually lessen the life span of your pump because kerosene has no lubricating quality. this isn't to say that in a pinch you can't add a small amount to fuel that is going to be exposed to cold temps to avoid gelling, but it will lessen the quality of the fuel resulting in lower power and mpg ratings. you are better off adding fuel additives that are engineered for use with diesel fuel and will actually improve the fuel quality and performance. yes, you can use d1, but i would recommend looking into the proper additives to increase it's lubricity so that it will provide more protection to your moving parts. also, don't expect the same power and mpg's that you would et out of d2. it's not a huge difference in power, but a difference non the less. well, this is a long post and i apologize, but i just wanted to spread my little bit of knowledge. hoped it helped.
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post #4 of 4 (permalink) Old 10-20-2007, 07:25 PM
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number 1 is meant to be run in winter number 1 is basically home heating oil number2 is regular road diesel.. Off road fuel is just dyed number 2
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