Max Gear 85W140 Synthetic Gear Oil - 946mL | ROY01303

Royal Purple® Max-Gear® is an ultra-tough, high performance gear oil designed to provide maximum protection to heavily loaded gears while maximizing power throughout the drivetrain. Max-Gear® is recommended for use in automotive front and rear differentials, manual transmissions and transfer cases that specify use of an API GL-4 or GL-5 fluid. This superior formulation is noncorrosive to soft yellow metals like brass, bronze and copper (synchronizer safe), and it contains the friction modifier additive needed for limited-slip differentials. Max-Gear® also works great in marine gear applications. Not for use in gear boxes, transmissions and lower units with wet clutches.

Max-Gear® outperforms ordinary gear oils by combining the highest quality synthetic base oils and advanced EP gear oil additives with Synerlec® additive technology. Royal Purple’s advanced and proprietary Synerlec® technology provides an exceptional film strength increase compared to other engine oils.  The protection provided by Synerlec® dramatically reduces metal-to-metal contact and frictional wear, helping to extended transmission life and reduce parasitic power loss through the vehicle drive train. Synerlec® also provides the lubricant with outstanding oxidation resistance to increase lubricant useful life and safely extend oil drains.  The ionic attraction of Synerlec® to metal components provides unmatched wear protection, even before the oil is fully circulating. 

• Maximizes horsepower
• Extends gear and bearing life
• Reduces operating temperature
• Lower coefficient of friction
• Superior corrosion protection
• Separates rapidly from water
• For use with open, limited-slip and locking differential
• Contains limited-slip friction modifier




Suitable Replacement For:

API GL-4/ GL-5, API MT-1, SAE J2360, Mack GO-J, MIL-PRF-2105E