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Re: Synthetic Motor Oil: Extended Drain Interval - or Not?
Posted to Castrol Forum on 2/27/2017 10 Replies

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When the owners manual states that one CAN use "conventional oil", and that the "synthetic" must meet the same specifications as conventional oil, who gives a rats pitoot about "synthetic" at all-?? ... Login to read more.

10 Replies Received (View Replies)