I bought my 2002 Z71Suburban four years ago. It had 128,000 miles. It now has 240,000,easy maintained miles. It still runs and looks new! Gm manual calls for 5w30 engine oil. I run a synthetic blend. My question is should I run a thicker oil in the summer. Thanks,James

Asked by James Jun 09, 2013 at 08:47 AM about the 2002 Chevrolet Suburban 1500 LT 4WD

Question type: Maintenance & Repair

High milage and thin vs thicker oil in summer.

James answered 10 years ago

Thanks guys. It has bery lifter knock in mornin stsrts if sat for couple days. It stops in afew seconds apsoulutly no lesaking,runs like new. Just thought 5w30 to thin for summer. Hope get 400,000 out of it.

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I bought my 2002 Z71Suburban four years ago. It had 128,000 miles. It now has 240,000,easy maintained miles. It still runs and looks new! Gm manual calls for 5w30 engine oil. I run a synthetic blend. My question is should I run a thicker oil in the summer. Thanks,James 1 Answer

High milage and thin vs thicker oil in summer.

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I bought my 2002 Z71Suburban four years ago. It had 128,000 miles. It now has 240,000,easy maintained miles. It still runs and looks new! Gm manual calls for 5w30 engine oil. I run a synthetic blend. My question is should I run a thicker oil in the summer. Thanks,James

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I bought my 2002 Z71Suburban four years ago. It had 128,000 miles. It now has 240,000,easy maintained miles. It still runs and looks new! Gm manual calls for 5w30 engine oil. I run a synthetic blend. My question is should I run a thicker oil in the summer. Thanks,James

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