Quote:
Originally Posted by SP3333D
This has always been a concern of mine too. The dealer insists that I only need to do it every 18k miles, but I have them do changes on the 10's...
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18K miles?!?!?!?!? Wow. Look modern full syn has come a long way…but there is no way I’d let it run for 18,000 miles in a hot forced induction platform. These cars run at 240-250 all day, that’s much hotter than most cars. We have a reasonably large capacity with the oil cooler (7 quarts or so), but still that’s just too long to run oil. I swap mine every 5-6K, 10K is probably fine. I would not push it much farther than that though.