Quote Originally Posted by Ewreck View Post
Someone should ask the question, of all the combustible engines ever built on planet earth, how many have failed or had drastic shorter lifespans due to oil preference. I'm gonna go out on a limb and say not enough to ever worry about it.
Certainly agree with your point, changing oil and filter most important. In mid 80s I had 77 corvette whose owner had always used cheap Pennzoil during the time when many said it was worse oil
I tire engine down for rebuild as I wanted more power and that engine with 160k miles was very clean inside.