RAVENOL J1V1300 2-Stroke Snowmobile Oil - Full Synthetic JASO FD Spec Oil (1 Liter) RAVENOL 2-Stroke Snowmobile Oil has more formal approvals compared to most other brands on the market confirming it's superior quality (see below approvals) Unique formulation provides extreme 2-stroke engine protection during high RPM racing or high altitude conditions Engineered and certified for use in all direct-fuel-injected (DFI), electronic-fuel-injected (EFI) engines using the latest high performance oil injection systems from Yamaha, Ski-Doo, Arctic Cat, Polaris Provides excellent lubrication for cylinder walls, pistons, crankshaft and other engine components Excellent cleaning effect, keeps combustion chambers, exhaust ports and power valves clean providing consistent and reliable long term engine performance