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Oils, Fluids and Sealer› Oils, Fluids and Additives

Red Line

Red Line 75W85 MT-85 Gear Oil - Quart

$323.88 $25.49 Save $298.39

SKU: R00B 50504

In Stock
In Stock
Ships by Jul 30
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Red Line MT-85 GL-4 is a synthetic 75W-85 GL-4 gear oil for manual transmissions, formulated for optimal lubrication, anti-friction protection, and heat resistance. It promotes quicker shifts, offers excellent gear and synchro protection, and extends synchro life by lacking reactive sulfurs found in most GL-5 oils. Recommended for GL-1, GL-3, and GL-4 applications.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRed Line
Part NumberR00B 50504

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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