Royal Purple Max Gear 75W-140 is a premium full-synthetic heavy-duty gear oil engineered to deliver outstanding protection for high-load driveline components including differentials, final drives and manual transmissions. Infused with Royal Purple’s advanced Synerlec® additive technology, Max Gear 75W-140 provides exceptional film strength, reduced friction and long-lasting wear protection under extreme pressure and heat.

Designed for vehicles that demand a thicker, high-performance gear oil, this 75W-140 formula offers superior protection for gears, bearings and limited-slip units – making it ideal for performance cars, 4x4s, towing, track cars and hard-driven road vehicles in the UK. It also helps reduce drivetrain noise, heat build-up and wear, supporting smoother operation and extended component life.

Suitable for limited-slip differentials without the need for additional friction modifier in most cases.

🔎 Why Choose Royal Purple Max Gear 75W-140 in the UK?

• Engineered for high-load, high-temperature driveline protection

• Ideal for performance, towing, 4×4, track and motorsport applications

• Helps reduce differential whine, heat and friction

• Excellent for vehicles with limited-slip differentials

• Supports smooth operation and long-term reliability

✅ Key Features & Benefits

• Heavy-Duty Synthetic Gear Oil – Designed for high-torque and high-load use.

• Synerlec® Technology – Enhanced film strength for superior wear prevention.

• Reduces Friction & Heat – Supports cooler, more efficient driveline operation.

• Limited-Slip Compatible – No extra friction modifier needed for most LSDs.

• Thermal Stability – Maintains viscosity and protection under extreme temperature.

• Extended Component Life – Protects gears, bearings and LSD units under stress.

🔧 Recommended For

• High-performance cars

• 4x4s, SUVs and off-road vehicles

• Towing and heavy-load use

• Limited-slip differentials & high-torque drivetrains

• Track day and motorsport vehicles

Note: Check your vehicle handbook or manufacturer specification to confirm suitability for your differential or gearbox.

🛠️ Specifications

• Viscosity: 75W-140

• Oil Type: Full Synthetic Gear Oil

• Size: 1 Quart (946ml)

• Suitable For: Differentials, LSDs & high-load manual driveline components

• Series: Royal Purple Max Gear

📦 What You Receive

• 1 × Royal Purple Max Gear 75W-140 – 1 QT Bottle