Hi all, Just wondering if anyone has any good or bad comments or experiences with the Aust Castrol GTX2 engine oil. Sort of under mix impressions with this myself. One thing that bug's me, is Castrol will make a direct effort to recommend against using it in any sort of mildly performance engine, but other companies that have there products in direct comparison to it will go out of there way to prove that there product (around same price, grade and weight) is well suited to performance use and standard applications. I don't know if it's a case of simply being a mediocre product, or a bunch of tec advisers that just don't know there stuff all that well. All thoughts and comments welcome.