Oil
5 Answers
No it won't hurt, especially in warm weather.
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Why would you want to put in an oil other than recommended? 5w30 and 10w30 have different cold flow characteristics, other than that they function the same and have the EXACT SAME viscosity at operating temperature. Don't try to re-engineer the wheel, use what is recommended as listed in the owner's manual.
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When they engineered that car they did not know where its home was going to be so when your in hotter weather conditions your oil runs thinner so you can go up on the weight of the oil so that it does not run to thin and possibly damage the engine
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