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What Motor Oil Should You Use?

698 bytes added, 12:12, 13 March 2007
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===API Grade===
[[Image:API-donut-BAD.JPG|right|thumb|Do NOT use this oil in your motorcycle.]]
To the right you'll see an example of the API Service Symbol, also known as the API Donut.
 
This tells you three things:
#API Service and Grade
#SAE weight
#Whether the oil is "Energy Conserving"
 
This label is controlled by the [http://www.api.org/ API]. Manufacturers are required to submit samples of their oil for testing by independent (from the manufacturer) labs to certify that the oil really does meet the requirements to carry the API Donut, and what that donut says.
 
The API publishes a [http://new.api.org/certifications/engineoil/categories/upload/EngineOilGuide2006.pdf pamphlet] explaining the donut.
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