Thread: Mobil 1 5W40 SUV missing from local stores.
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Old 01-28-2006, 09:03 PM
Brian Carlton Brian Carlton is offline
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Join Date: May 2002
Location: Blue Point, NY
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Quote:
Originally Posted by imdavid28
Whats so wrong with the Rotella?
Nothing is wrong with it. But the M1, a group IV synthetic, is a much better oil than the Rotella syn, a group III synthetic.

There was quite a bit of discussion regarding group III and group IV in the archives.
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