ALLISONMAN
Well-Known Member
Why does everyone want to cheap out on oil when these motors cost so much to rebuild and maintain!!!! I personally dont see why you would have a hi-po engine and run some oil that some engine rebuilder recommends!!! He does make a living off of rebuilding motors!!! Merc oil has extra additives to help out with alot of tiny problems that go unseen or unsaid!! I have run klotz for years and even question its additives even though i havent had any oil related problems to date!! Of course i have to run klotz in both race clubs we race with but after time and time of 10,000 rpm passes at 50:1 i cant really see where at 7000 the oil wouldnt do its job!!! But given the preference i would probably run the merc hi-po oil and see if it would extend some ring life!! I think penzoil would be fine in a low rpm stocker since it is tcw3 rated but i wouldnt run it in a hi-rpm or hi-po motor!!! Just my 2 cents