AMSOIL Motorcycle oil

AMSOIL Synthetic 10W-30 Motorcycle Oil is the result of extensive research, and it is specially formulated to excel in all areas unique to motorcycles, including high engine RPM

Advanced multi-functional formula for both domestic and foreign motorcycles. Recommended for high-performance liquid or air-cooled 4-stroke engines and transmissions and both 4- and 2-stroke

The second edition of the AMSOIL "Study of Motorcycle Oils" (part # G2156) is now available. See how 32 of the top selling motorcycle oils compare in the most critical areas of motorcycle performance. This no-frills study was designed to help consumers make informed decisions when selecting motorcycle oils. There is no hype, no sales pitch, just facts. Never before has so much information on motorcycle oils been delivered in one easy-to-understand source.

See for yourself how the full range of the most popular motorcycle oils stand up to the hot-running, hard-pounding, high RPM conditions of motorcycle applications. This complete battery of tests includes wear protection, rust protection, oxidation stability and more.

The interactive test results offer a glimpse inside the testing that is conducted with each oil in the second edition of the "Study of Motorcycle Oils". To see how other oils compared to the AMSOIL products, simply click on their names on the left side of each graph, and their color-coded results will display. We will feature different tests on the page from time to time. If you want to know how all of the oils did on every test, you can refer to the document below.

Volatility (Evaporation) (ASTM D-5800) SAE 50 Results

1. Higher temperatures produce greater volatility (evaporation).
2. Increased volatility causes increased oil consumption and emissions.
3. Oil is first heated to 250° C for a period of 60 minutes.
4. Air is drawn through the container holding the oil sample to remove vapor.
5. After 60 minutes, the remaining oil volume is weighed.
6. Comparison to initial oil weight.
7. A lower weight loss score indicates better performance.

Advanced multi-functional formula for both domestic and foreign motorcycles. Excellent in air-cooled motorcycle engines due to high heat resistance. Can be used in engines, transmissions and the primary chaincase.

Synthetic SAE 60 Motorcycle Oil is a premium oil designed for those who demand the absolute best lubrication for their motorcycles. The result of extensive research, it is specially formulated for big bore machines.