i've nerded out on engine oils before for a little bit, but still very noob.
poorman, i have a stock pile of T6 and pennzoil synthetics and mobil 1. they might not be the "best", but i feel they do a fairly adequate job of lubricating the engine in a 3k-5k oil change interval for their price. would you agree? if not, what are some of the lower-than-amsoil quality oils that you'd suggest? you said amsoil is at the top, but can u find a compromise in price and OCI with a less expensive oil? i like my SR, but not $15 per quart amounts of love :P hopefully you don't comeback with "gotta pay to play", cuz i find that hard to believe when it comes to oils of today.
edit - yes if you pay more you'll get better quality oils, but i think a "lower quality" like a T6, pennzoil, mobil, will do a good enough job in a 3k-5k OCI condition or in a couple of race events, that most of us would never see the true benefits of a more expensive oil. although, i'm guessing the higher priced amsoil offers some kind of insurance if you lose oil pressure all of a sudden. because of its chemistry and bond, it allows the engine to perhaps run longer with no oil pressure than say a T6 or pennzoil or mobil1.
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