Red Line MT-90 75W-90 GL-4 manual transmission lubricant (1 Quart, 4 Pack)
"High-performance gear protection and smoother shifts." Ideal for GL-1/GL-3/GL-4 applications with easier cold-shift and reduced grind. Some customers note improved cold-weather operation and quieter transmissions
Highlights
- GL-1/GL-3/GL-4 compatibility
- quicker shifts with better friction control
- notchy-shift elimination and noise reduction
Pros
- high-performance gear protection
- smoother synchronizer engagement
- effective in cold conditions
- reduces shifting grind
- works across GL-1, GL-3, GL-4 applications
Cons
- customer feedback focused on specific models
- no explicit mention of compatibility with all transmissions
Best For
Features
- HIGH PERFORMANCE - gear protection and longer synchro life. Recommended for GL-1
- GL-3
- and GL-4 applications.
- QUICKER SHIFTS - perfect synchronizer coefficient of friction and eliminates notchy shifting
- even when cold
- REQUIREMENTS - gear oil viscosity of 75W; 80W; SAE 40 10W40 and 15W40 motor oil
- POPULAR GEAR OIL FOR - GL-1
- GL-3 and GL-4 applications
