good oil if you read all the prop... err sales literature but then again there are many specialty oils out there with great performance.. royal purple or redline to name a couple. Is it worth the hassle and the extra price to buy amsoil from a specialty dealer vs mobile one or castrol at walmart? What do you hope to gain.. longer engine life? By how many years/miles.... 1, 2, 5? Do you really think it makes that much of a difference? Maybe its like tap water vs bottled water? Which is better? Will one make you live longer? Change the air filter and spark plugs more often for a bigger bang for your buck. One quality oil vs another is splitting hairs.

FWIW I have used castrol dino juice in my race motors exclusively with no issue. Those guys who use mobile one sythetic arent putting down anymore power or getting any more longevity than me.

I use mobile one in my c43 just because thats what it came with.


IMO spend your money on a high quality filter! Use any oil and change is as needed based on driving style.