Originally posted by SVT_CT: The test data in the second article is from 1995 and 1999. Also Castrol was actually synthetic for the tests, not as it is now. That data has no relevance to someone deciding what to put in their car today.
Don't know if you read the article properly, but in the 1999 test it said that Castrol Syntec is just an advanced dino oil now with some synthetic additives.
As for the Amsoil Faq's (Castrol wasn't a synthetic for this test) you guys believe Amsoil is the best, well do you beleive the test results from them too?
