What (API or ACEA)test do they use to determine how well a motor oil will hold up in a turbo charged engine, When they state on the bottle turbo approved are they basing this on a standard test or is it mostly marketing.
Thanks
Thanks
quote:
Originally posted by BOBISTHEOILGUY:
... I'd disregard any standard api spec for qualifying the oil's ability to stand up for turbo's.
Yes, in the early 1990s Castrol GTX did say "turbo approved." I agree that the term should be regarded as mere marketing hype.quote:
Originally posted by Virtuoso:
My bottle of Castrol GTX isn't labeld Turbo Approved, but I do remember seeing thoes 'tags' on other bottles not too long ago. In fact, I think I bought oil for my turbo Shadow because of thoes