Parts for your 2013 Subaru Forester-Power steering fluid

2013 Subaru Forester power-steering-fluid

Power-steering fluid is absolutely relevant to the 2013 Subaru Forester. The 2013 model (SH series) uses a belt-driven hydraulic power-steering system, not an electric unit. This is documented in Subaru’s factory Service Manual for the SH Forester (Steering section: Hydraulic Power Steering) and the 2013 Subaru Forester Owner’s Manual, which specifies automatic transmission fluid (ATF), Dexron III type, for the power-steering reservoir. Those technical sources confirm that the vehicle is fitted with a fluid-based system and requires the correct ATF for proper operation.

On this Forester, the power-steering fluid’s job is to transmit hydraulic force so the steering stays light, consistent, and quiet at car-park speeds and out on the open road. The pump (driven by the accessory belt) pressurises the ATF, the rack-and-pinion turns that pressure into assist, and the reservoir keeps the system topped up and de-aerated. Using the right fluid matters: Subaru specifies ATF Dexron III (or Subaru ATF equivalent) rather than generic “power-steering fluid”, because viscosity and additive chemistry affect pump wear, seal life, feel and noise.

While Subaru doesn’t set a strict replacement interval in the owner’s manual, good practice in Australia and New Zealand is to inspect the level and condition at each service, and refresh the fluid every 60,000–100,000 km or 4–6 years, especially if the fluid darkens, smells burnt, or the steering starts to whine when cold. Many workshops do a staged exchange (siphon-and-fill over a few visits) or a full flush with the return hose to minimise mixing old and new fluid.

• Check the reservoir under the bonnet with the engine off, use the COLD/HOT marks as directed in the manual.
• Top up only with ATF Dexron III (or Subaru ATF), and avoid mixing with generic PSF or incompatible ATF grades.
• After any fluid service, bleed air by turning the wheel slowly lock-to-lock several times with the front wheels lifted, then recheck the level.
• Inspect for leaks at the pump, hoses, reservoir and steering rack, watch for dampness on hose crimps and rack boots.
• A chirping or heavy feel can also point to a tired accessory belt or tensioner—worth checking during the same visit.

Look after the fluid and the Forester’s steering stays light, quiet and predictable, with seals, the pump and the rack lasting the distance on Aussie and Kiwi roads.

What fluid does a 2013 Subaru Forester use for power steering?

Subaru specifies ATF Dexron III (or Subaru-branded ATF of equivalent spec) in the power-steering system, not generic power-steering fluid. This matches the guidance in the 2013 Owner’s Manual and Subaru service literature for the SH series.

How often should the power-steering fluid be changed on a 2013 Forester?

There’s no hard interval in the owner’s manual. A sensible schedule is to inspect at every service and renew the fluid every 60,000–100,000 km or 4–6 years, sooner if it’s dark, smells burnt, or the steering whines, feels heavy, or shows leaks.

Can Dexron VI or universal PSF be used instead?

Stick with Dexron III–spec ATF (or Subaru ATF) for the steering. Some modern ATFs are backward compatible, but not all behave the same in older Subaru hydraulic systems. If in doubt, use a labelled Dexron III equivalent to protect the pump and seals.