SKU: 05301 / UPC: 641330053016
Royal Purple Max Gear Synthetic 75W-140 Gear Oil - 5 Gallon
The leading formulation for superior safeguarding in high-stress environments. This advanced synthetic blend surpasses conventional mineral oils and rival synthetics such as Lucas or Amsoil by offering unmatched shear stability, exceptional film strength under intense pressures, and optimized viscosity retention that minimizes drag and maximizes torque transfer.
Capable of withstanding temperatures over 300°F without breakdown, it extends component lifespan by up to 50% in rigorous towing or off-road scenarios, while its proprietary additives ensure seamless compatibility with clutch packs, eliminating chatter and promoting fluid longevity beyond 100,000 miles. In contrast to lesser options that thin out rapidly or require extra modifiers, Max Gear delivers effortless cold starts, reduced noise levels, and enhanced fuel economy proving itself as the optimal selection for operators who refuse to settle for average protection and seek enduring reliability.
Why Royal Purple Max?
- Advanced Thermal Resilience: Premium base stocks resist oxidation and foaming at elevated heats, outperforming standard GL-5 oils by maintaining consistent lubrication where others falter, ideal for prolonged heavy loads.
- Ultimate Wear Mitigation: High-load EP agents form a robust barrier against scoring and pitting, lasting longer than basic synthetics and preventing costly repairs in differentials or gearboxes.
- Integrated Friction Control: Built-in modifiers support limited-slip mechanisms without supplements, providing smoother engagement and quieter performance over unmodified alternatives.
- Efficiency Boost: Lowers internal resistance for improved power delivery and potential MPG gains, especially in fleet or commercial use, eclipsing heavier conventional fluids.
- Broad Compatibility and Endorsement: Safe for yellow metals and seals, with proven acclaim from mechanics for its role in enhancing drivetrain smoothness and durability in diverse applications.
Included:
- One (1) Royal Purple Max Gear Synthetic Gear Oil Pail: 5-gallon container of fully synthetic 75W-140 fluid, ready for direct use in differentials, transmissions, or marine applications.
- Part Number: 05301 (high-performance drivetrain lubricant).
- UPC: 641330053016.
- No Additional Additives: Formulated with necessary friction modifiers; no separate purchases required for limited-slip setups. Dispensing pump or tools sold separately for easy transfer.
- Warranty: Supported by Royal Purple's quality assurance against formulation defects; reach out to Royal Purple support for specifics and validation.
Vehicle Fitment:
This Royal Purple Max Gear Synthetic 75W-140 is engineered for vehicles specifying SAE 75W-140 GL-5 gear oil, particularly in rear differentials under heavy-duty, towing, or severe service conditions (verify with your manual or mechanic for exact requirements).
|
Year |
Make |
Model |
Submodel/Notes |
|
1999-2025 |
Ford |
F-250 Super Duty |
All, especially with limited-slip diffs |
|
1999-2025 |
Ford |
F-350 Super Duty |
All, heavy towing configurations |
|
2000-2005 |
Ford |
Excursion |
Limited-slip rear axles |
|
1999-2025 |
Chevrolet |
Silverado 2500 HD |
All, including HD diesel variants |
|
1999-2025 |
Chevrolet |
Silverado 3500 HD |
All, for AAM 11.5" differentials |
|
1999-2025 |
GMC |
Sierra 2500 HD |
All, severe service rear ends |
|
1999-2025 |
GMC |
Sierra 3500 HD |
All, towing and commercial use |
|
2003-2025 |
Ram |
2500 |
Heavy Duty, with Dana 60/80 axles |
|
2003-2025 |
Ram |
3500 |
All, limited-slip differentials |
|
2007-2025 |
Jeep |
Wrangler |
Rubicon/392 models, Dana 44/60 diffs |
|
2019-2025 |
Jeep |
Gladiator |
Heavy-duty axles, off-road setups |
|
2001-2025 |
Toyota |
Sequoia |
Rear differentials for noise reduction |
|
2007-2014 |
Toyota |
FJ Cruiser |
All, enhanced lubrication needs |
Note: Suitable for manual transmissions or marine lower units requiring GL-4/GL-5 specs. Always confirm viscosity and API rating via your owner's manual, VIN check, or professional consultation, as fitment can vary by axle type (e.g., Dana, AAM) and modifications.



