99816-2050 Heavy Duty SAE 20W50

Spectro Heavy Duty SAE 20W50 is a multi-grade motor oil designed for Harley-Davidson Evolution and Twin Cam engines. This versatile lubricant is suitable for a wide range of operating environments, performing reliably in temperatures from -10 to 40 degrees Celsius. Spectro Oils of America uses high-quality base stocks and an advanced additive package to meet OEM 99816-2050 standards. The formulation provides excellent protection against wear, rust, and oxidation, ensuring the longevity of modern air-cooled V-twin engines. It maintains stable viscosity under high heat while providing easy flow during cold starts.