See also:

Engine
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Driving on grades
● Before going down a steep hill, slow down and shift into lower gear (if necessary, use 1st gear) in order to utilize the overheating of your vehicle’s brakes. Do not make sudden downshifts ...

Rear differential gear oil
There is no oil level gauge. To check the rear differential gear oil level, we recommend that you consult your SUBARU dealer for inspection. ...