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1969 BUICK RIVIERA
Posted to Castrol Forum on 9/28/2017 20 Replies

Not sure what type of engine oil to use here. Engine has either 86k or 186k on odometer. I have install castrol 10w-30 for now but would like to confirm properly application. I have searched internet but it seems everyone has their opinions... (as usual) Login to read more.

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