Synthetic Gear Oil

Red Line Synthetic Oil
Synthetic Gear Oil

Synthetic Gear Oil


Synthetic Gear Oil

Designed to provide the highest degree of protection and greatest efficiency for your drivetrain. Red Line provides a complete line of drivetrain lubricants which are optimized for differential, transmission or transaxle use over a wide range of temperatures. Proper selection depends upon the manufacturers' requirements and whether the application is for passenger automotive, commercial or racing use. Red Line Gear Oils contain polyol ester basestocks to provide excellent lubrication even under extreme conditions of high-loading and high- temperatures--their natural lubricity provide excellent slipperiness which reduces the sliding friction in hypoid gears to reduce wear and temperatures. The synthetic basestocks have a natural multigrade property, so large amounts of unstable thickeners are not required to manufacture our gear oils, which means that Red Line Gear Oils will provide a stable viscosity for even extended periods of use. Red Line also manufactures gear oils which can be used in limited-slip differentials without the use of additional friction modifiers.




75W90 Gear Oil
  • Most popular Red Line gear oil, with thousands of applications for passenger cars, light trucks, and racing vehicles
  • Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required
  • This product is not designed for use in most manual transmissions or tranaxles, since the extreme slipperiness may cause synchronizer mesh issues that lead to shifting problems
  • Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360

More info 75W90 Gear Oil

75W140 Gear oil
  • Popular for cars and light trucks like Ford Mustang, Ford F-150, Dodge Ram, Toyota Tundra and Sequoia, and Jeep Cherokee
  • Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required
  • This product is not designed for use in most manual transmissions or tranaxles, since the extreme slipperiness may cause synchronizer mesh issues that lead to shifting problems
  • Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360

More info 75W140 Gear oil

75W90 NS Gear Oil
  • Designed for transmissions and transaxles - helps to slow synchros for easier shifting across a broad temperature range
  • Popular in Ferrari, Porsche and Subaru transaxles
  • Musclecar applications like Ford Top Loader, Borg-Warner T-10 and Super T-10, and Muncie transmissions
  • Contains extreme pressure additives like our 75W90 GL-5 oil, but lacks friction modifiers to balance slipperiness
  • Improved copper corrosion protection to prolong synchro life
  • Helps with lock-up on weak limited-slip differentials-compatible with Red Line Limited Slip Friction Modifier for tuning slippage
  • Also used with clutch-type LSDs in racing for maximum lock up
  • Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E and SAE J2360

More info 75W90 NS Gear Oil

75W140 NS Gear Oil
  • Contains extreme pressure additives like our 75W140 GL-5 oil, but lacks friction modifiers to balance slipperiness
  • Popular for historic and vintage transmissions, like Mid-1930s to early-1950s synchro-equipped gearboxes in cars and trucks
  • Helps with noisy or rough shifting in troubled A-833 Dodge/Plymouth 4-speed transmissions from 1964 to 1969
  • Option for noisy transmissions when mixed with 75W90NS or MT-90 to bring viscosity level up
  • Also used in clutch-type limited slip differentials in racing for maximum lock up-some users add Limited Slip Friction Modifier in small doses to customize slippage
  • Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360

More info 75W140 NS Gear Oil

V-Twin Primary Case Oil
  • For 1984-to-present V-Twin American motorcycle engines, including Evolution, Twin Cam, and aftermarket engines of similar design
  • Same fluid as our famous MTL gear oil
  • Improves clutch operation while reducing wear and temperature
  • Where most synthetics are too slippery for clutch operation, this friction-balanced product is balanced to provide less slip, smoother operation, and helps to apply more power in modified engines
  • This product is for use in the primary chaincase with wet-diaphragm spring clutches.

More info V-Twin Primary Case Oil

back to Gear Oils   Gear Oils

For more information regarding the full range of Red Line Oil products then don’t hesitate to get in touch today. Contact Us on +44 (0)2476 717100 or fill in our Contact Form.

For contact information regarding our UK and European Dealers then please see our Dealers page.

Contact Red Line for information on Synthetic Gear Oil

Engine Oils
   Engine Oils
   Motorcycle Oils
   Race Engine Oils

Gear Oils
   Synthetic Gear Oil
   ShockProof™ Gear Oil
   Automatic Transmission Fluids

Coolant Additives
   Engine Coolant

Performance Fuel Additives
   Diesel Fuel Additives
   Petroleum Fuel Additives

Grease & Assembly Lube
   CV-2 Grease
   Assembly Lube
   Racing Power Steering Fluid

Suspension Fluids
   LikeWater Suspension Fluid
   ExtraLight Suspension Fluid
   LightWeight Suspension Fluid
   Medium Suspension Fluid
   HeavyWeight Suspension Fluid

Brake Fluid
   RL 600 Full Synthetic Brake Fluid