
REDLINE MT90 75W90 GL-4 Gear Oil, US Quart (946ml)
Recommended for GL-1, GL-3, and GL-4 applications as well as where most special synchromesh fluids are specified. Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage. Not for use in differentials with hypoid gears.
Satisifies the gear oil viscosity requirements of 75W, 80W and motor oil viscosities of SAE 40, 10W40, and 15W40. Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige & Toyota.
Price: $31.19
News & Special Events
Performance Racing Industry Week
Closed until December 15th
Christmas Closure
December 24th to January 6th
2026 SCCBC Driver Training #1
March 28th - 29th
important notice: due to exchange rate volatility, prices are subject to change without notice


