Full Synthetic 75W140NS GL-5 Gear Oil (1 quart) has Vis@100°C= 27.1 CSt, Vis@40°C= 168 CSt, Viscosity Index= 200, SAE Viscosity Grade= 75W140 (gear oil), ester base stocks, & no friction modifiers that balance slipperiness.
Full Synthetic 75W140NS GL-5 Gear Oil contains extreme pressure additives like our 75W140 GL-5 oil, but lacks friction modifiers to balance slipperiness. It is popular for historic and vintage transmissions, like Mid-1930s to early-1950s synchro-equipped gearboxes in cars and trucks. It helps with noisy or rough shifting in troubled A-833 Dodge/Plymouth 4-speed transmissions from 1964 to 1969 and is a good option for noisy transmissions when mixed with 75W90NS or MT-90 to bring viscosity level up. It is 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. These Red Line GL-5 offer big protection but are not slippery, for certain trans and diff applications. These GL-5 products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers for proper limited-slip operation. This product exceeds API GL-5 specifications and is engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear.
  • Full synthetic
  • High viscosity-index
  • Relatively constant viscosity & film thickness with varying temp change
  • Ester base stocks
  • Friction modifiers
  • Superior shear stability
  • Less oxidation
  • Exceeds API GL-5 specs
  • Longer drain intervals

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.