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OIL KIND TO USE

WHAT TYPE OF OIL DO I USE IN MY 1999 GMC SIERRA V8 6 LITER?

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10w30 or 10w40 would work for u ok.

Posted on Apr 20, 2014


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I agree with the previous but thecowner's manual has the oil grade recommendations for your specific driving. So, if you want it from the horse's mouth, just look it up.

Posted on Apr 20, 2014

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2 Answers

WHAT TYPE OF OIL DO I PUT IN MY 1999 GMC SIERRA 6 LITER V8?


5w30 in cold months 10w30 in warm to hot months. High milage if its over 75,000 miles.

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