Red Line 75W85 GL-5 Differential Fluid (BMW)

More power means more heat and load on the differential. Red Line's 75W85 is a fully synthetic gear oil that runs cooler and protects better than the factory fill, especially on cars that see launches and track days.

Why it's better

• Base: polyol-ester synthetic that holds up under extreme load.
• Lower temperatures: friction modifiers reduce sliding friction in the hypoid gears.
• Viscosity: a high viscosity index keeps it steady from cold to hot, and it resists shear and oxidation.
• Spec: exceeds API GL-5.

Meets or exceeds these BMW specs

• Part numbers: 83 12 0 445 838 · 83 22 2 295 532 · 83 22 2 413 511 · 83 22 2 413 512 · 83 22 2 447 362
• Fluids: Castrol BOT 448 · BMW Hypoid Axle Oil G1, G2, G3, G4

• Orders ship from Dallas, TX in 1–2 business days.
• Free US shipping on orders over $250.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.