Originally Posted By: userfriendly
I like engine tear down videos, in this one from Havoline, as per usual, we don't know what the "competitor's" oil is.
It could be 10w30 maple syrup from Canada for all we know.
https://www.youtube.com/watch?v=RmbYUNZ5E9w
Sure didn't look like a synthetic equivalent to me.
To the filter regimen I added above the oil I would pick would be the best deal and most available of this group I could get off a shelf out of these choices-
PUP 0/5/10-30/40
PP 0/5/10-30/40
M1 0/5/10-30/40
Castrol Magnatec - same ranges
Alternatively/ controversially you could probably go really cheap full Sythnetic oil you could go with the Full syn Supertech which is actually pretty good for the money an keep very high OCI's and be fine.
Bitoggers like 0W40 on whole for a variety of reasons - mine are that its available in bulk nearly everywhere for really low cost, and out hold ups under brutal conditions beyond even what any auto can possibly put on it - beautifully- my ILMOR 710 is a 505 CI/8.3 Litre v10 will belt out 700 HP for hours on end then idle like a kitten for half an hour, its clean as a whistle inside it.
Good enough for ILMOR engineering - good enough for Uncle Dave
(My spell correct turns Castrol to Castro, and I was not suggesting a Cuban Dictator be selected)
UD