Join Date: Dec 2006
Location: Your Minds Eye AKA Dallas
I cant say I have ever had any oil related failures on my drag bike or drag cars. I am certain argument can be made about longevity etc. but it seems if we stay within the manufacturers recs then most are ok......
I will say when i did tear down old mopar engines for friends etc i did see lots of ash/sludge from guys using... i think quaker state.....
I use RP on my car now but have been warned by Edhughes that the 40 weight im using isnt enough during the summers.