Quote:
Originally posted by marcucci
5-30 has been commonly recommended for improved mileage. I don't think switching to 10-30 will buy you increased protection, the engine was designed for 5-30.
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I put in 10w30 cause i'm a bargain hunter and Walmart didn't have 5w30 in 5q. jugs. Also, figured smaller spread between cold and hot is good, and it never gets below 40*F in SoCal.
Thanks for the help everyone.