Power Service can be bought at any auto parts.

 

Dodge recommends using no fuel additives for the 6.7L. If you really want to use a fuel additive, stick to the oneswith alabel that indicates compatibility with 2007 emissions. Most of the popular additives like Power Service are compatible. Marvel Mystery Oil is not, among others. Apparently it's due to high levels of sulfur in the additive.

 

Going against the flow here. I wouldn't put anything in it especially a 6.7they're specifically engineered around 15 ppm ULSD fuel. Quit putting additives in mine(5.9)a few months ago. Never gonna look back waste of time and money imo.

 

Junky...When I 1st got my truck in early 2006 I ran the drews brew and consistantly saw a 1.0 mpg increase. that was on the LSD fuel. within 4 months we were on the ULSD only, then I could no longer say it gave me any mpg increase. with the current thread going on that I have on mpg testing... I'll find out what each combo of additives does. good or bad.

 

Yes that is what they say, but both Dodge and Cummins will sell you an additive with there own name on it and at a higher cost then what you can buy it for some place else under a different brand name!

Anyway if you live where it gets real cold then do use and anti gel {that is 2007 emission complaint} if your not sure of the fuel you are buying. My self I'd use one if it ment I did not have worry about de-geling my fuel system at 11:00 PM on the side of a road at 10 below zero and 20 miles from the nearest person.

JMHO