MAMMOTH PETROLEUM
778-370-3330
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.
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PRODUCT RESOURCES
PERFORMANCE
Enhanced Film Strength: Provides a thicker protective layer for engines operating in extreme heat or under massive mechanical stress.
Oil Pressure Stability: Helps maintain consistent pressure in older or high-mileage engines, reducing oil consumption and internal blow-by.
Severe Service Defense: Ideal for air-cooled engines and high-load environments where standard 15W-40 oils reach their thermal limits.
PROTECTION
Thermal Cushioning: The high-viscosity "50-weight" profile provides a massive protective cushion for engines running in extreme heat.
Blow-By Reduction: Improves the seal between pistons and cylinder walls, reducing oil consumption and keeping power where it belongs.
Air-Cooled Protection: Specifically engineered for the erratic and extreme temperatures of air-cooled diesel and gasoline engines.
UPTIME
Heat-Stroke Prevention: Keeps equipment running in extreme ambient temperatures where thinner oils would trigger "low pressure" shutdowns.
Enhanced Compression: Revitalizes the performance of high-hour engines, keeping older assets productive and on the payroll longer.
Severe-Duty Mastery: Specifically built for the "worst-case scenario" environments—racing, air-cooled, or high-ambient-heat desert operations.
COMPOSITION
RESISTANCE
PROTECTION
FEATURES & BENEFITS
Universal Versatility: A premium "one-oil" solution for mixed fleets running both diesel and gasoline engines.
Soot Dispersancy: High-efficiency dispersants keep soot in suspension to prevent abrasive wear and oil thickening.
TBN Retention: Strong alkaline reserve (TBN) neutralizes acids over extended drain intervals in older engines.
Sludge Prevention: Keeps the crankcase and valve covers free of performance-robbing deposits.
Film Strength: Maintains a robust lubricating film even in high-heat, high-load off-road environments.
APPLICATIONS
On-highway diesel trucks (Pre-2007) and mixed gasoline/diesel commercial fleets.
Off-highway construction, earth moving, and mining equipment.
Farm equipment requiring a universal oil for both tractors and support vehicles.
Older engines where a high-detergency, high-TBN lubricant is required.
Licenses & Approvals:
Fleet Pro Power D (15W-50) is licensed or OEM-certified for:
API Service CK-4
Fleet Pro Power D (15W-50) meets or exceeds the requirements of:
Cummins CES 20086
Caterpillar ECF-3
High-temperature/Air-cooled specifications for severe duty applications.
MAMMOTH TECHNICAL TIP:
This is a high-detergency legend. For fleets with older diesel rigs and gasoline-powered support trucks, Power-D simplifies your inventory without sacrificing protection. It’s got a heavy additive punch that keeps older, high-hour engines running clean inside.