Base Oil: Semi Synthetic For oil-injected and premix systems. Compatible with Chrysler, Evinrude, Honda, Johnson, Mariner, Mercury, Suzuki, Tohatsu, Volvo Penta, Yamaha, Nissan, and many others. Minimizes plug fouling, pre-ignition, ring sticking, and exhaust port blockages. Delivers low smoke performance and excellent anti-seize and anti-scuff protection. Not for high combustion temperatures in air-cooled 2-stroke engines or Sea-Doo Jet Skis. Meets NMMA TC-W3, JASO TB, API TC, and ISO EG-B standards.