Quote:
Originally Posted by backinthesaddleagain
Someone above asked if you go syn can you ever use conventional again? I heard you couldn't back a few years ago (due to seals swelling), but can now. Anyone know?
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I'm certain that is a myth. Check out the Mobil 1 website which has a section about synthetic oil myths.
So Mobil 1 which wants to sell you synthetic says it is fine to switch back and forth. Also there are many blends of synthetic and conventional sold. So for me this issue is 100% closed, but of course everyone can draw their own conclusions.
Since the vast majority of high performance cars (including Corvette) come from the factory with Mobil 1, I'm skeptical about the idea of having to wait before using a Synthetic for the 250. But there have been enough people warning about it that I just don't know the answer on that one. I have my doubts though.