6.7 Fuel additive

[LarryM]

I just traded my Y2k in on a new Laramie dually. I always used a fuel additive with the Y2k and I believe that it really helped the old girl live. I am told that I shouldn't use an additive with the new truck because it would hurt the DPF system. Is this correct??? I know that the engine systems would benefit, but I don't know a thing about that ginormous fuel waster under the truck. Thanks for your input





Larry

 

[Hoefler]

There is no manufacture approved additive for the 6. 7. I have not had a single fuel related problem in my 08 or my 2010. The 08 had 62,000 miles when I traded in Sept, and I have 17,000 miles on my 2010 so far. I have bought fuel all over from Mass. to Wy. , to Fl. , to Tx. , and all points in between

 

[RWalker]

Additives are designed to improve the combustibility of the fuel. Engine manufacturers design there engines using a good quality fuel that is controlled at testing time. It has a high cetane number and good lubrication. They do not take in affect that you might be buying a fuel that has a low cetane number or a high HFRR (lubricity)number. If you know for fact you are getting both than most likely you won't need additives, but if you don't know for fact you are getting a good quality fuel I would still recommend a good quality additive.

 

[HBarlow]

You wouldn't happen to sell them would you?

I think I'll stick with the recommendation made by Cummins, Inc. and Dodge published in my owner's manual.

 

[RWalker]

Yes I do! Just did an HFRR test for a trucking company who is now my customer. The result from the fuel HFRR test from there supplier was 720um, ASTM spec is 520um and a pump manufacturer says 400um is the number you need for lubricity. This doesn't represent the norm but I shared 10 HFRR's with another customer two weeks later who are in 48 States. Out of 10 fuels we tested only 2 met ASTM Spec, in fact one fuel was 815um and my customer was shocked. Thats why we recommend an additive, at least a lubricity additive.

 

[AH64ID]

Yes I do! Just did an HFRR test for a trucking company who is now my customer. The result from the fuel HFRR test from there supplier was 720um, ASTM spec is 520um and a pump manufacturer says 400um is the number you need for lubricity. This doesn't represent the norm but I shared 10 HFRR's with another customer two weeks later who are in 48 States. Out of 10 fuels we tested only 2 met ASTM Spec, in fact one fuel was 815um and my customer was shocked. Thats why we recommend an additive, at least a lubricity additive.

Exactly why I run a lubricity additive!