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Chevrolet Master
85,242 Answers
- Posted on May 27, 2010
Re: What kind of engin oil does a 2003 chevy suburban...
The factory calls for 5W20W, this saves fuel and the engine is designed to run longer on the thin weight oil, never use any oil thicker than 10W30W, even in a very hot climate or u will damage the rod and the main bearings
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