Aeroshell W100 Piston Oil 6 Quart Case

Oil W100 is an ashless dispersant oil specifically developed for aviation piston engines. It reaps the performance benefits of combining non-metallic additives with selected high viscosity index base oils. No general rule exists for every engine type when choosing the correct grade of oil; however, based on the average ambient outside temperature at engine start-up, the most common grades are SAE 40, SAE 50, and SAE 60, which equate to Oil W80, W100, and W120 respectively. Traditionally, the choice is associated with climatic zones: W80 for cold climate regions (-17 to 21C), Oil W100 for temperate regions (16 to 32C), and Oil W120 for warmer climates (above 26C) Oils W80, W100, and W120 are produced to meet fully the SAE specification J1899 (Grades SAE 40, 50, and 60 respectively).