Hope this isn't a rehash of an old post from someone... . but I am a newbie and have a question. I fill up with ULSD, however; I see quite a few posts where folks are using additives to the fuel tank, either a mopar or something from Geno's. I thought the book that came with the truck said no additives and some folks are saying Cummins doesn't suggest additives.
What is the right answer since I don't want to void a warranty or cause any problems with the dealer. We love the truck but it is a loud clacker which is fine with me, but annoys the wife. But since I've been annoying her for over 25 years that really doesn't bother me
Thanks for any advice
What is the right answer since I don't want to void a warranty or cause any problems with the dealer. We love the truck but it is a loud clacker which is fine with me, but annoys the wife. But since I've been annoying her for over 25 years that really doesn't bother me

Thanks for any advice
