Description
2015+ Subaru WRX & STI Complete Manual Transmission Drivetrain Fluid Change Kit
Whether you’re doing a 30k/60k/90k mileage fluid change, or are swapping out your clutch or differential, make sure you have the gear oil on hand to complete the job! Since most GL-5 gear oils for differentials are too slippery for manual transmissions, Red Line offers these products that ensure proper shifting while providing ultimate wear protection.
Subaru recommends checking and/or changing your drivetrain fluids every 30,000 miles, and if you’re a do-it-yourselfer this is what you’ll need to get the job done.
NOTE: Make sure to use 75W90NS in the transmission/front diff and 75W90 in the rear diff. 75W90 GL-5 is not designed for use in most manual transmissions or transaxles in passenger vehicles, since the extreme slipperiness may cause synchronizer mesh issues that lead to shifting problems.
Features
- 75W90NS GL-5 is designed for transmissions and transaxles – helps to slow synchros for easier shifting across a broad temperature range
- 75W90 GL-5 contains additional friction modifiers for suitability with clutch-type limited slip differentials – for most LSDs, no additional friction modifiers are required
- Excellent for high- and low-mile transmissions
- Improved copper corrosion protection to prolong synchro life
- Non-corrosive formula, safe for use with all synchro materials
Applications
- 2015-2021 Subaru WRX and STI w/Manual Transmission (VA)
- 2022+ Subaru WRX w/Manual Transmission (VB)
What’s In The Box?
- 5 Quarts – Red Line 75W90NS GL-5 Gear Oil for the transmission and front differential
- 1 Quart – Red Line 75W90 GL-5 Gear Oil for the rear differential
References
- 75W90NS Safety Data Sheet
- 75W90 Safety Data Sheet
Warranty
- No Warranty






Reviews
There are no reviews yet.