Ok I have been reading alot about engine oil and valve train componet failures on our modular engines, some say 5w20, some say 5w30, 10w? etc. for our engines. What about turbo modular engine oil being that you get more oil break-down due to excessive heat? EXAMPLE; The block assembly manufacture reccommend this weight of oil, valve train assembly manufacture reccommends another, and turbo requires a certain weight, Where do you comprimize?
I have had 2 roller followers go out in the last month, one on each bank. I been using 15w40 sense build approx. 10,000 mi., oil psi was good, and changed regular.
My question is, What would be the best oil for turbo modular engine? 4.6 3v stroked to 5.0 with turbo.