Best Royal Purple Gear Oils in 2026

40% BETTER WEAR PROTECTION than the industry standard with enhanced anti-wear additives, keeping critical engine components safe and preventing metal surfaces from making contact

EXCEPTIONAL TEMPERATURE PROTECTION no matter the weather with superior viscosity modifiers to ensure oil flows more easily, coats more completely, and resists thermal breakdown even in the fiercest driving conditions

ENHANCED FRICTION PERFORMANCE HELPS MAXIMIZE POWER with advanced friction-fighting agents that properly lubricate moving parts and help your older engine maintain its horsepower to perform its best for longer

ADVANCED PROTECTION AGAINST the four main causes of engine breakdown: wear friction heat and deposits

40% BETTER WEAR PROTECTION vs. industry standard as tested in the Sequence IVB engine test

25% BETTER DEPOSIT PROTECTION with superior engine cleaning detergents as tested in the GMOD engine test

Better wear protection

Increased fuel efficiency

Better protection of the expensive catalytic emission system

Maximum wear protection

Increase horsepower and torque

Advanced protection for performance and modified engines

Better wear protection

Increased protection against LSPI

Increased fuel efficiency

Royal Purple

Delivers superior protection and enhanced performance due to its unique blend of synthetic oils

Enhanced additive technology greatly reduces engine wear and prevents metal-to-metal contact

Extremely tenacious, adheres to engine surfaces, and remains after shutdown, providing protection upon initial startup

50% More wear protection than industry standard with enhanced anti-wear additives that prevent unwanted metal-on-metal contact and provide an extra layer of protection that keeps your engine in excellent shape for the many miles ahead

Reduce costly repairs by minimizing exhaust system damage with our fully synthetic formulation

Minimize heat and abrasion between moving parts help your high-mileage engine maintain its horsepower and perform its best for longer

Proven To Minimize Everyday Wear On Your Engine By Providing Consistent Lubrication And Defense

Optimize Power & Fuel Efficiency With Our Low Friction Technology

Resist Oil Breakdown & Sludge With Added Detergents To Keep Your Engine Clean

Formulated with proprietary Synerlec additive chemisty providing 3X to 4X the load carrying capacity of other synthetic engine oils

High film strength protects buckets, crankshafts and reduces piston scuffing

Superior rust and corrosion protection

5W20

5-Quart Bottle

Better wear protection

Increased fuel efficiency

Better protection of the expensive catalytic emission system

For Best Performance, Follow The Manufacturer'S Recommendations In Your Vehicle Owner’S Manual

Package Dimension : 10 L X 5 W X 2 H (Inches)

Made In Usa

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

Greater wear protection for severe service performance

High temperature performance low temperature fluidity

Designed to deliver trouble-free, consistent performance

Right for your vehicle and lifestyle

Made from high-quality materials for ultimate durability

Case of 4 // 1 Quart (32 Ounces)

Royal Purple engineered this ultra-tough, high performance automotive hypoid gear oil to provide maximum protection to heavily loaded gears while maximizing power throughout the drive train. Max Gear outperforms ordinary gear oils by combining the highest quality synthetic oils with Royal Purple’s proprietary Synerlec additive technology.

Maximizes horsepower, Extends gear and bearing life, Reduces operating temperature, Severe service performance, Lower coefficient of friction, Superior corrosion protection

Greater Wear Protection on Startup

Clean Efficient Equipment Extends Equipment Life

Compatible with Conventional Mineral and Synthetic Oils

Royal Purple

Brand: Royal Purple

LTDType: Synthetic

Viscosity: 75W-90

Gear Lube Oil

Has exceptionally high film strength for dramatic reductions in engine wear and reduced engine heat to extend the life of your engine

The improved sealing between the piston ring and cylinder wall maximizes horsepower and torque and optimizes fuel economy

Offers exceptional oxidation stability that extends oil life and allows for more miles driven between oil changes saving you time and money

Greater wear protection for severe service performance

High temperature performance low temperature fluidity

Excellent water separation which prevents corrosion

Greater wear protection for severe service performance

High temperature performance low temperature fluidity

Excellent water separation which prevents corrosion