Red Line 75W110 GL-5 Synthetic Gear Oil - 1 Quart

Red Line 75W110 GL-5 Synthetic Gear Oil - 1 Quart

The "Goldilocks" Protection for High-Stress Differentials

Optimize your drivetrain’s performance with Red Line 75W110 GL-5. This lubricant is the perfect upgrade for vehicles that operate in high-temperature environments or carry heavy loads but still require efficient power transfer. Formulated with Red Line's signature polyol ester base stocks, it provides an exceptionally high viscosity index, meaning it stays thick enough to protect gear teeth under extreme pressure while remaining fluid enough for cold-weather operation. It comes pre-mixed with the necessary friction modifiers for Limited-Slip Differentials (LSD), ensuring smooth, chatter-free performance right out of the bottle.

What’s Included in the Box:

- (1) 1 Quart (0.946L) Bottle: Standard neck design compatible with most common fluid transfer pumps.

The Red Line Advantage

- Optimized Viscosity: Provides approximately 25% more viscosity at operating temperatures than a 75W90, without the added drag of a 75W140.

- Polyol Ester Base Stocks: Delivers superior film strength and thermal stability, outperforming petroleum and Group III synthetics in extreme heat.

- Integrated Friction Modifiers: Includes the specific additives required for most clutch-type limited-slip differentials to eliminate noise and vibration.

- Extreme Pressure (EP) Protection: API GL-5 rated to handle the intense sliding pressures of hypoid gear sets in trucks, SUVs, and race cars.

- Exceptional Shear Stability: Resists mechanical breakdown even under the most punishing shock loads, ensuring consistent protection between service intervals.

Product Specifications

- Part Number: 57804

- Viscosity Grade: SAE 75W-110

- Standard: API GL-5, GL-6, MT-1, MIL-L-2105E

- Viscosity at 100°C: 20.9 cSt

- Viscosity Index: 166

- Flash Point: 232°C / 450°F

- Pour Point: -40°C / -40°F

Precision Tip: 75W110 is becoming a popular choice for late-model trucks and performance cars that originally specified 75W90 but are now being used for heavy towing or track days. It provides that extra "cushion" of safety for your gear teeth without a noticeable impact on fuel economy. If you have an extremely sensitive LSD and still hear a bit of chatter on tight turns, you can add a small amount of Red Line Limited Slip Friction Modifier to fine-tune the engagement.