U.S. Oil Supreme Gold Engine Oils® and Synthetic Engine Oils exceed the industry engine performance requirements for the API Engine Oil Licensing and Certification System (EOLCS).
Click here to see our current API License Certificate
Click here to see API's Engine Oil Service Categories
Click here to see our current ILSAC Starburst License
Click here to see our ISO Certificate
Click here to learn more about certified engine oil required testing
Click here to learn more about GF-4
Lubrication Warranty Program
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U.S. Oil builds performance into Supreme Gold Engine Oils ® to protect your engine from damage caused by failure of the lubricant. We are so confident in the performance of Supreme Gold ® that we will pay for the reasonable costs to repair or replace covered engine parts that fail as a direct result of a lubrication failure during the first 10 years of service or 300,000 miles, whichever comes first. |
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Promoting the warranty program will give your customers peace of mind that they are purchasing a quality product. |
