Gear Oil

Red Line MT-90 75W90 GL-4 Gear Oil

$34.75$43.71save 20% vs MSRP· 946 mL (1 US qt)

Available in 2 sizes — choose yours below

Part no. RL-50304 · Red Line part no. 50304 · price in CAD

In stock — free pickup in Edmonton, or we ship it. Shipping AB/SK/MB $30 · ON/QC $40 · NT $50 (base FREE over $150).

100% genuine. 100% genuine Red Line, from authorized North American distribution.

A full synthetic, ester-based GL-4 gear oil for manual transmissions and front-wheel-drive transaxles. It is safe for brass synchros, satisfies 75W90, 80W90 and SAE 90 gear-oil viscosity requirements, and is popular in Nissan, Mazda, Mitsubishi, VW/Audi and Toyota transmissions. It is not for differentials with hypoid gears.

✓Offers quicker shifts, perfect synchronizer coefficient of friction
✓Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
✓High performance gear protection and longer synchro life
✓Eliminates notchy shifting, even when cold
✓Satisfies the gear oil viscosity requirements of 75W90, 80W90, 90 and motor oil viscosities of SAE 40, 10W40 and 15W40
✓Recommended for GL-1, GL-3 and GL-4 applications, as well as where most special synchromesh fluids are specified
✓Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige, Toyota, Mendeola transmissions and Atlas transfer cases for Off Road
✓Compatible with petroleums and other synthetics

Choose a size

30-day returns · Secure Stripe checkout · 100% genuine · (780) 482-2424

⚠ Safety warnings

MT-LV, MTL, MT-85 & MT-90 are not for use in differentials with hypoid gears

Safety data sheet (SDS) →

Specifications & Approvals

API Service Class GL 4

Recommended for vehicles requiring

API GL-4/GL-3/GL-1, SAE 75W90 SAE 90/80W90, SAE 40/10W40/15W40, Alfa Romeo, Audi G 052 911, BMW MTF-LT-4, BMW 81 22 9 407 305, BMW 83 22 2 339 223, Castrol BOT 130M, Castrol BOT 328, Castrol SAF AG4, Castrol TAF-X 75w-90, Castrol Syntrans Transaxle 75W-90, Ford F32Z-19C547-MA, Ford M2C175-A, Ford M2C200-B, Ford WSS-M2C203-A1, Ford XT-4-QGL, GM 12345371, GM 12345724, GM 12345871, GM 12346074, GM 89021806, GM 89021807, GM-Daewoo EDS-M-8049, Holden, Hyundai/Kia 08950-00010-A, Hyundai/Kia 04300-5L1A0, Jeep 0489722AA, Lotus, Mazda (MES) 115A, Mazda 0000-77-114-QT, Mazda L.L. Manual Gear Oil IS, MB 235.11, MB A 001989510310, Mitsubishi, Mobil SHC 630, Nissan Mission Oil MP-G HQ, Opel, Skoda, Toyota 08885-80917, Toyota 08885-81023, Toyota 08885-81026, Vauxhall, VW/Audi G 005 000, VW/Audi G 005 100, VW/Audi G 045 190 A2, VW/Audi G 052 145, VW/Audi G 052 157, VW/Audi G 052 911, VW/Audi G51, VW/Audi G50, VW/Audi 501.5

Common questions

Is this genuine Red Line MT-90 75W90 GL-4 Gear Oil?

Yes. 100% genuine Red Line, from authorized North American distribution. Everything we sell is genuine product — never grey-market.

Can I get it shipped or pick it up in Edmonton?

Both. Choose ship-to-me for delivery (AB/SK/MB $30 · ON/QC $40 · NT $50, base rate free over $150), or select pickup at checkout and collect it at our Edmonton shop.

Not sure this is the right gear oil for your vehicle?

Check your owner's manual for the required specification or call our Edmonton team at (780) 482-2424 and we'll match the right product to your vehicle.