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Is it safe to use AMSOIL 10W-30 in a small engine that calls for SAE 30 petroleum motor oil?

April 26, 2017AMSOIL engine motor Petroleum SAE safe small

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Is it safe to use AMSOIL 10W-30 in a small engine that calls for SAE 30 petroleum motor oil?

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Yes, it is safe to use AMSOIL 10W-30 in an engine that calls for an SAE 30 petroleum oil. All 30 weight oils, whether a 5W-30, 10W-30 or straight 30 weight, perform as 30 weight oils at operating temperatures. The “w” indicator in multigrade oils (10W-30) refers to the oil’s cold weather properties. You can think of “w” as standing for “winter” Therefore, a 10W-30 oil meets the “10w” criteria when cold and the “30” criteria when hot.