Parts for your 2022 Subaru Impreza-Transmission fluid

2022 Subaru Impreza transmission fluid — what it does and how to look after it

Transmission fluid is very much relevant to the 2022 Subaru Impreza. According to the 2022 Subaru Impreza Owner’s Manual and the Subaru Service Manual for the TR580 Lineartronic CVT (as published via Subaru’s technical information system), the Impreza’s CVT uses a dedicated Subaru CVT fluid, and manual-transmission variants use specified gear oil. It’s not a system that can be run without fluid, and generic ATF must not be used.

In day-to-day driving, the transmission fluid is the unsung hero. In CVT models, Subaru’s Lineartronic CVT fluid lubricates the chain and pulleys, cools the unit, and provides the precise friction characteristics that let the CVT hold ratio smoothly under load. In manual models, the correct GL-5 gear oil reduces wear on gears and synchronisers while keeping shift feel consistent across hot summer runs and cold winter starts.

Servicing-wise, Subaru schedules fluid condition checks at routine intervals, with replacement dependent on use and inspection results (refer to the owner’s maintenance schedule). Many Australian and New Zealand workshops will recommend a CVT fluid exchange somewhere in the 90,000–120,000 km window for vehicles that tow, see lots of short trips, or drive in hilly or hot conditions. For light-duty city and motorway use, fluid life can be longer, but it should still be inspected on time. Manual-gearbox and final-drive oils are typically replaced at set kilometre intervals, check the service book for the exact timing on your trim.

There’s no dipstick on the CVT, and level checks are done via the service fill and overflow ports with the transmission at a specific temperature range, using a scan tool. That’s why this job is best left to a technician with the right gear and the correct Subaru-approved CVT fluid. Mixing fluids or over/underfilling can cause shudder, flare, or premature wear.

• Use only Subaru-approved CVT fluid for CVT models, do not substitute ATF.
• For manuals, use the specified GL-5 75W-90 (or as listed in the owner’s manual).
• Ask for a fluid-condition report during regular servicing, especially if towing, doing alpine trips, or lots of stop–start driving.
• Watch for symptoms like whine, judder on take-off, slipping, or burnt-smelling fluid — get it checked promptly.

Popular questions about 2022 Subaru Impreza transmission fluid

What transmission fluid does a 2022 Subaru Impreza use?
CVT models require Subaru-approved Lineartronic CVT fluid formulated for the TR580 unit. Manual-transmission variants use the specified GL-5 75W-90 gear oil (and matching oil in the rear differential). Using generic ATF or the wrong spec can damage the transmission.

When should the CVT fluid be changed?
Follow the owner’s manual maintenance schedule and have the fluid condition inspected at each major service. Many local workshops suggest a fluid exchange around 90,000–120,000 km for hard use (towing, heat, hills, stop–start). Normal-use vehicles may go longer, but inspection is key.

Is there a dipstick to check CVT fluid at home?
No. The 2022 Impreza CVT is a sealed unit without a dipstick. Level is set via the service ports with the transmission at a specified temperature, so it’s a workshop procedure with the correct tools and fluid.