HIGH-VISCOSITY MASTERY: FLEET PRO® POWER D® (15W-50)

Extreme Heat Performance. Enhanced Film Strength.

Mammoth is proud to supply Phillips 66® Fleet Pro Power D in the specialized 15W-50 grade. This high-viscosity multigrade oil is engineered for heavy-duty engines operating under high-load, high-temperature conditions where a standard 15W-40 may not provide sufficient protection. It is an ideal solution for air-cooled engines, racing applications, or older equipment that requires a thicker oil film to maintain oil pressure and reduce consumption.

WHY MAMMOTH TRUSTS POWER D 15W-50:

• Enhanced Oil Film Strength: The 50-weight high-temperature viscosity provides a thicker protective layer, reducing metal-to-metal contact in engines that experience extreme thermal stress.

• Oil Pressure Stability: Helps maintain consistent oil pressure in older or high-mileage engines, reducing oil consumption and blow-by in worn components.

• Sludge & Varnish Defense: Formulated with a robust additive package that prevents the formation of harmful deposits, ensuring the engine remains clean and efficient.

• Versatile Heavy-Duty Protection: Provides excellent wear protection for a variety of diesel and gasoline engines, making it a "go-to" for severe service environments where heat is the primary enemy.