well filled the tank on my o4 for the first time.. much better than my powerstroke at the pump.. my question is this.. i did my usual with the ultra low sulfer fuel. bottle of styndyne and filled the bottle with 2stroke and poured that in... is that what everyone has been doing with duramax our is that just a powerstroke thing?

it really depends on who your talking to. lots of people run 2 stroke mix, and lots are running standyne. i use howes and a little veggie oil. check out the fluids section for better info