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Old 10-16-2009, 07:50 PM   #1 (permalink)
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Join Date: Oct 2009
Location: Connecticut
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Auto. 2007 Yaris - '07 Toyota Yaris
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Oil: Conventional vs. Synthetic Blend vs. Full Synthetic

Okay, so my car takes 5W30 oil. That's what Toyota recommends in the owner's manual. What is the difference between using conventional, synthetic blend, and full synthetic oil of the same weight and viscosity (5W30)? Also, would there be any benefit or harm in using 0W30 instead of 5W30?


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