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Re: Synthetic Oils
Posted to Technical Discussion Forum on 12/31/2004 9 Replies

Gene,

Everything I won has had 5W30 Mobil one in it since the first oil change.

Wife's 1984 Riviera with a little over 115k miles. Rear main leaks a little, but almost all of the Olds rope seals do. Only thing I have ever done to it was remove the valve co... Login to read more.

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