Red Line 75W80 Gear Oil  (1 Gallon) - 50205
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GL-4 specific gear oil

If your manual transmission is feeling a little sloppy or the shifter is feeling notchy it's probably time for a drain and fill. Red Line fluids have a large user base who swear by the stuff.

Features and benefits:

  • Popular for BMW, Honda and Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Dodge & Jeep NV1500, NV3500 and NV5600 truck transmissions
  • Popular replacement for and improvement over GM Synchromesh® (#12345349) and Auto-Trak II® (#12378508) and Chrysler spec MS-9224
  • Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
  • Offers quicker shifts, perfect synchronizer coefficient of friction
  • Eliminates notchy shifting, even when cold
  • High performance gear protection and longer synchro life
  • Satisifies the gear oil viscosity requirements of 70W, 75W, 80W, and motor oil viscosities of SAE 30, 10W30, and 5W30
  • Recommended for GL-1, GL-3, and GL-4 applications as well as where most special synchromesh fluids are specified

About Red Line gear oil for manual transmissions:

  • Appropriate coefficient of friction for most manual transmission synchronizers (other's synthetic gear oils are often too slippery for proper synchro engagement)
  • Red Line offers lubricants to pinpoint nearly every transmission application
  • MTL, MT-85 & MT-90 are not for use in differentials with hypoid gears
  • Excellent gear and synchro protection, balanced slipperiness for easier shifting in cold climates
  • Excellent for high- and low-mile transmissions
  • Compatible with petroleums and other synthetics
Product match fitment

Red Line 75W80 Gear Oil (1 Gallon) - 50205

Red line logoRed Line
SKU #:
Gear Oil
OE Numbers:
70W80, GL-4, GL4
$67.99 MSRP: $82.99
Careful, this is a universal product. Some parts may require modification depending on application.
Ships within 1 business day
  • Guaranteed to Fit, Guaranteed for Life We guarantee the fit and quality of our parts for life. If it doesn’t meet your expectations send it back for a replacement or refund. Learn more
  • Fitment Verified This product application guide has been tested to ensure it will accurately fit the cars outlined in our fitment guide.
  • Shop With Confidence We respect your privacy; we always keep your information confidential.
  • What If I Need to Return This Item? Not a problem! If you are not happy with your purchase, we will gladly help you exchange or return your items, provided you follow the guidelines outlined in our Returns Policy.
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