drinkypoo
Full Access Member
There's some good info over there but it just got to be too much fighting with old coots who would rather fight than help people
They have slightly lowered the amount of ZDDP in most oils. It was around 1400PPM and now is 1000-1200PPM. The ZDDP protects engines with flat tappits. We have roller tappits so the slight lowering of ZDDP does not matter to us like it would if we were running a 396 with stiff valve springs. Also...They have started using other anti wear additives to replace the lowered ZDDP. Basically and 15w40 diesel oil you buy today be it synthetic or Conventional is much better than what was available when the trucks were new.
So what your saying is it really doesn't matter what kind of oil I run so long as its changed on time as in the 400LE , Delvac and Rotella are all ok ?
Sent from my XT907 using Tapatalk
Yep as long as its a Diesel oil it will be fine. Impossible as it sounds the Walmart Super tech oil is a very good oil. As good as the name brands. I did used oil analysis on it and its great stuff!
There's some good info over there but it just got to be too much fighting with old coots who would rather fight than help people
Hey, drinkypoo, I'm one of those old coots on the TDS, I don't argue with anyone. TDS Bill1013. Yeah I know those three or four over there. Quote "I'm a diesel mechanic for a hundred years" Unquote.
We run Rotella T6 in all of our subarus and its good stuff. In the truck though I havent switched yet, still running valvoline premium blue. Truck seems to like that alot, burns the dino rotella like its going out of style.