Originally Posted by strych9
My Porsche called for 15k oil changes...using good old Mobil One.
I've gone to seminars about motor oil, synthetics, etc. A C5 member (Gunny, I think) did testing and proved that there was no significant degradation or contamination in the oil after 8k miles of use.
Synthetic oil will go the distance with no problem. No OEM is going to make that claim unless it's a fact. They are responsible for the warranty, after all.
All bets are off if you're racing it.
I am not doubting you, but I like the added peace of mind changing every 3k miles even with Mobil 1. These timing chains make me nervous.