RED LINE GEAR OILS are designed to provide excellent low-temperature shiftability and improved gear protection at higher temperatures. Red Line Gear Oils will reduce differential temperatures 10-70ºF. Efficiency improvements between 1-5% are typical. The synthetic base stocks used have tremendous thermal stability and provide the best film strength available. The unique combination of base stocks and additives allow Red Line gear oils to carry higher loads compared to petroleum lubricants. The stability of these products allow them to be used for extended periods. (Available in cases of quarts, (12 per case), or when indicated, cases of gallons, (4 per case).

75W90 and 75W140 are recommended for most street driven and racing differentials. Excellent performance in conventional and limited slip units. Also for limited slip manual transaxles which require a 90WT oil. Contains limited slip friction modifiers.

75W90NS and 75W140NS are recommended for manual transmissions and non-limited slip transaxles that recommend 90 WT oils. Can be used in racing limited slip units to increase lockup and reduce wheel spin. Street driven cars should use regular Red Line 75W90, 75W140 or 80W140.

80W140 is recommended for heavily loaded and low speed differentials, including limited slip, and where reduction of limited slip chatter or gear noise is required.

SHOCKPROOF gear oils are recommended for heavily-loaded racing differentials and transmissions which see shockloading. Shock Proof contains a unique solid dispersion which cushions gear teeth to help prevent tooth breakage and allows the use of lower viscosities. Available as Super Light, Lightweight and Heavy grades.

MT-90 is a 75W90 GL-4 Gear Oil designed for use in manual transmissions and transaxles. Provides excellent protection of gears and synchronizers and it's balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting.

MTL - Manual Transmission Lubricant - A 70W80 GL-4 Gear Oil (SAE 5W30/10W30 engine oil viscosity) is designed for use in manual transmissions and transaxles. Provides excellent protection of gears and synchronizers and it's balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting.