I’d consider using the Amsoil except for the price of $13 per quart. But more to the point, most drivers do not need the very best wear protecting oil, as do high performance vehicles.
This from the author:
“...But, there could be some confusion for people who do not actually read my entire Blog. My test data on wear protection is generally aimed at High Performance and Racing engines that are capable of pushing motor oils near their limits. So, knowing how capable various oils truly are, can be critical. It is of course also for people who simply want to know what oils will provide the best possible wear protection for their engines, even if they don’t technically push their motor oil near its limit.
However, for ordinary daily driver vehicles, the oil used is nowhere near as critical as it is for High Performance and Racing engines. So, a normal daily driver vehicle may operate just fine for the life of the engine on say a low performing 60,000 psi motor oil. But, a High Performance or Racing engine may require a high performing 90,000 psi or higher motor oil, to avoid wear and/or damage. It just depends on how much loading the engine puts on its motor oil.”
