should a 1989 gmc sierra use 5w 30 or 10w 30 we use a bosch 3510 oil filter

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Asked by Aug 11, 2015 at 04:23 PM about the 1989 GMC Sierra 1500 C1500 Extended Cab LB

Question type: Maintenance & Repair

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If it is higher mileage I would do 10w-30. I run 10w-30 in older Chevrolet vehicles!

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