Extreme Performance 40W+ Heavy Duty EP Transmission Oil

Jimmy’s Extreme Performance 40W+ Heavy Duty EP Transmission Oil is a proprietary synthetic lubricant developed for extended drain intervals and severe service in heavy-duty commercial vehicle transmissions. It is engineered to protect high-torque transmissions operating with increased-horsepower engines under demanding temperatures, loads, and driving conditions.

Most importantly for trucking companies and fleet operators, this transmission oil is suitable for applications requiring Eaton PS-386. This key specification helps maintenance teams evaluate whether the lubricant aligns with the transmission manufacturer’s service requirements, operating conditions, and recommended maintenance schedule.

Its advanced formulation provides excellent thermal and oxidation stability to resist deposits and sludge formation. Strong film strength, friction retention, friction durability, and shear stability help reduce wear, prevent foaming, protect against rust and corrosion, and maintain smooth transmission operation throughout the extended drain interval.

Suitable service classifications include API MT-1, Eaton PS-386, Eaton PS-164 Rev 7, International TMS 6816, Mack TO-A Plus, Meritor O-81, ZF FreedomLine, and Dana synchronized and non-synchronized transmissions. Typical applications include transmissions, transfer cases, and wheel-end hubs used in line-haul, vocational, off-road, pickup-and-delivery, and bus operations. Always follow the equipment manufacturer’s lubricant specification, SAE viscosity recommendation, filling instructions, and required oil capacity.