MAMMOTH PETROLEUM
778-370-3330
Phillips 66® Triton® Heavy Duty ATF is a premium, full-synthetic automatic transmission fluid specifically engineered for the punishing duty cycles of transit buses, refuse trucks, and emergency vehicles. Built to survive where conventional fluids fail, this high-performance lubricant provides exceptional thermal stability and resistance to oxidation, allowing for significantly extended drain intervals up to four times longer than standard mineral-based ATFs. Its 100% synthetic base stock ensures superior performance in extreme temperature ranges—maintaining a robust lubricating film in the searing heat of summer and providing instant hydraulic response in sub-zero winter mornings. By utilizing advanced friction modifiers, Triton Heavy Duty ensures consistent, smooth shift quality throughout the entire service life of the fluid.
PRODUCT RESOURCES
PERFORMANCE
Shift Integrity: Maintains a consistent coefficient of friction over tens of thousands of miles, preventing shift-timing drift.
Thermal Management: Efficiently transfers heat away from the torque converter and clutch packs to prevent overheating during high-idle operations.
Low-Temp Fluidity: Full-synthetic chemistry allows for rapid circulation at startup, protecting internal pump components from cavitation.
PROTECTION
Anti-Wear Shield: Fortified with a heavy-duty additive package that protects critical gears, bearings, and thrust washers from surface fatigue.
Oxidation Guard: Exceptional resistance to chemical breakdown prevents the formation of performance-robbing sludge and varnish in the valve body.
Seal Integrity: Specifically formulated to keep heavy-duty elastomeric seals pliable, preventing high-pressure fluid loss and external leaks.
UPTIME
Extended Service Life: Engineered for drain intervals up to 100,000 miles in certain severe-duty applications, drastically reducing maintenance downtime.
Component Longevity: Minimizes friction-induced heat, which is the primary cause of transmission failure in vocational trucks.
Operational Precision: Prevents the "limp mode" incidents caused by solenoid sticking or valve-body deposit accumulation.
COMPOSITION
RESISTANCE
PROTECTION
FEATURES & BENEFITS
Full-Synthetic Endurance: Outperforms conventional ATFs in viscosity retention and thermal stability under max-load hauling.
Anti-Foam Technology: Maintains a stable, non-compressible hydraulic stream to ensure consistent line pressure and cooling.
Corrosion Inhibition: Protects internal copper-clad bushings and yellow-metal components from chemical pitting and rust.
Shear Stability: Resists mechanical thinning, ensuring the fluid stays "in grade" even under the intense torque of refuse and transit operations.
Varnish Resistance: Keeps shift solenoids clean and responsive, ensuring precise computer-controlled gear transitions.
APPLICATIONS
Heavy-duty automatic transmissions in transit buses, motor coaches, and refuse vehicles.
Vocational trucks operating in severe high-heat or heavy-load environments.
Commercial utility vehicles requiring an Allison C-4 or extended-drain synthetic ATF.
Heavy-duty transmissions requiring Voith or ZF Ecomat performance specifications.
Licenses & Approvals:
Approved for Allison C-4
Recommended for use where Allison TES-295® or TES-468™ is specified (Non-licensed)
Meets Voith H55.6335.xx and H55.6336.xx requirements
MAMMOTH TECHNICAL TIP:
In severe-duty vocational transmissions like the Allison 3000/4000 series, "Fluid Shear" is the silent killer. As the oil passes through the torque converter and planetary gears, the long-chain molecules of conventional oils are physically torn apart, causing the fluid to thin out and lose its ability to maintain line pressure. Triton® Heavy Duty ATF uses a shear-stable synthetic base that maintains its 7.3 cSt viscosity even after 50,000 miles of stop-and-go refuse collection. If you are diagnosing "shudder" during the 2-3 shift in a transit bus, check the fluid's oxidation levels; the high thermal capacity of this synthetic ATF prevents the "charring" of friction plates that occurs when mineral oils reach their thermal limit.