Quote Originally Posted by tseesinngwailo View Post
Whoops, well I did ring a respected person on these forums for guidance before I purchased, yes, they are both 5W-30 Catrol Edge products, one is the Sport, and the other is the Titanium, which I was told is the superceded oil of the Sport. Seeing as they are already mixed, I didn't really want to drain it again. At $70 a bottle, this is getting expensive, and I won't be likely to race the car before the next oil change. I will ring Castrol tomorrow to confirm if this is a bad thing.
Cheers, Chris
it's no big deal

Considering the BASE OIL had not changed. It wont break your engine.

PS: for $70... you'd better off getting mobil 1, theres a place in Sydney near Eastwood that sells them cheap.