Gear Oils

Red line 75W90NS is a GL-5 fully synthetic gear oil recommended for use in manual transmissions, transaxles and differentials, particularly those used in competition. It is suitable for use with clutch plate type LSD's to provide maximum lock up but not recommended for road car use as the oil does not have friction modifiers which prevents clutch plate noise. Red Line friction modifier can be added to this oil if quieter operation is required.Ideal for Motorsport useDoes not contain friction modifiers providing maximum lock up for plate type LSD'sProvides easier gear shifting across a wide temperature rangeProvides the highest level of component protection under extreme conditions for

Red line 75W90 is a hugely popular synthetic gear oil recommended for use in rear differentials and is suitable for both road and competition applications. Friction modifiers have been added to the oil making it suitable for clutch plate type LSD's in both road and competition cars.The most popular differential oil from Red lineSuitable for road or competition carsIncludes friction modifiers making it ideal for vehicles with plate type LSD'sSuitable replacement for applications requiring an 80W90 or SAE 90 gear oilRed Line 75W90 gear oil is engineered to provide excellent lubrication under extreme conditions and to give the highest degree of protection and improvement of differential

The Red Line 75W140NS is a GL-5 fully synthetic gear oil that has been designed to provide the highest degree of protection in vintage and historic vehicles, using synchro gearboxes, from the mid 1930's to early 1950's. Also for use in competition cars with plate type limited slip differentials. Provides maximum diff lock up as it contains no friction modifiers. Ideal for clutch type LSD's in competition cars as it provides maximum lockingPopular for use in historic and vintage synchro gearboxesCan be mixed with red Line 75W90NS  or MT-90 to aid viscosity and help quieten noisy gearboxes This oil has a high viscosity index (VI), this is to provide a constant viscosity and film thickness

Red line 75W140 synthetic gear oil is designed for heavy duty and high temperature non synchromesh manual transmissions or differentials in road or race applications where outright power is not as critical. Contains friction modifiers making it suitable for use in vehicles with clutch type limited slip differentials (LSD's).Fully synthetic formula provides excellent lubrication even under extreme conditionsGives constant viscosity and film thickness across a wide temperature range Lowers operating temperaturesImproves differential efficiency, increasing service life and drain intervalsSuitable for vehicles fitted with clutch type LSD'sSpecifications: API GL-5 +Recommendations: AP GL-5,

Red line 75W110 is a fully synthetic gear oil recommended for use in rear differentials including clutch type limited slip differentials. Designed as an intermediate viscosity providing extra film strength over an 85W90 but with less drag than a 75W140. Friction modifiers have been added to the oil making it suitable for clutch plate type LSD's in both road and competition cars.Includes friction modifiers making it ideal for vehicles with plate type LSD'sImproved film strength over a 85W90 oil but with less drag than a 75W140 oilImproves LSD operation under extreme loads and high temperaturesHigh viscosity index provides a consistent fim thickness across a wide temperature range for optimum …