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2021 Subaru Forester Owners Manual - Specifications



Specifications

These specifications are subject to change without notice.

in (mm)

Item

Overall length

182.1 (4,625)

Overall width

71.5 (1,815)

Overall height

68.1 (1,730)*2

67.5 (1,715)*3

Wheel base

105.1 (2,670)

Tread

Front

61.6 (1,565)

Rear

61.8 (1,570)

Ground clearance*1

8.7 (220)

*1: Measured with vehicle empty

*2: Models with roof rails

*3: Models without roof rails

& Engine

Engine model

FB25 (2.5 L, DOHC, non-turbo)

Engine type

Horizontally opposed, liquid cooled 4 cylinder, 4-stroke direct injection gasoline engine

Displacement cu-in (cc)

152 (2,498)

Bore 6 Stroke in (mm)

3.70 6 3.54 (94.0 6 90.0)

Compression ratio

12.0 : 1

Firing order

1 – 3 – 2 – 4

    Fuel

Fuel requirement

Fuel tank capacity

Unleaded gasoline with 87 AKI (90 RON) or higher

16.6 US gal (63 liters, 13.9 Imp gal)

For more details, refer to “Fuel”  P301.

    Engine oil

For the checking, adding and replacing procedure or other details, refer to “Engine oil”  P464.

! Approved engine oil

Always use the SUBARU approved engine oil. For further details, please contact your SUBARU dealer. If the approved engine oil is unavailable, use the alternative engine oil described on the next page.

If the SUBARU approved oil is unavailable, the following alternative oil can be used.

Oil grade

SAE viscosity No. and applicable temperature

Engine oil capacity

or

API (American Petroleum Insti- ILSAC (International Lubricant tute) classification SN with the Specification Advisory Commit-

words “RESOURCE CONSER- tee) GF-5, which can be identi-

VING” or SN PLUS with the fied with the ILSAC certification words “RESOURCE CONSER- mark (Starburst mark)

VING”

0W-20 synthetic oil is the required oil for optimum engine performance and protection. Conventional oil may be used if synthetic oil is unavailable.

*: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change.

– Adding the oil from low level to full level:

1.1 US qt (1.0 liter, 0.9 Imp qt)

– Changing the oil and oil filter:

4.4 US qt (4.2 liters, 3.7 Imp qt)

    Front differential and rear differential gear oil

Oil

Front differential gear oil

Rear differential gear oil

Oil grade

    SUBARU Extra MT*3
    API classification GL-5

(75W-90)

SAE viscosity No. and applicable temperature

Oil capacity*1

1.4 US qt (1.3 liters, 1.1 lmp qt)

0.8 US qt (0.8 liters, 0.7 Imp qt)

Remarks*2

“Front differential gear oil and rear differential gear oil”  P471

*1: The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other factors. After refilling the gearbox with oil, the oil level should be checked.

*2: For more details about maintenance and service, refer to the indicated section.

*3: The vehicle is filled at the factory with this type of oil.

& Fluids

Fluid

Fluid type*1

Fluid capacity*2

Remarks*3

Continuously variable transmission fluid

Consult your SUBARU dealer.

12.7 US qt (12.0 liters, 10.6 Imp qt)

“Continuously variable transmission fluid”  P470

Brake fluid

FMVSS No. 116, DOT 3

or DOT 4 brake fluid

“Brake fluid”  P471

*1: Use one of the indicated types of fluid.

*2: The indicated fluid quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other factors.

*3: For more details about maintenance and service, refer to the indicated section.

    Engine coolant

Coolant capacity

Coolant type

9.0 US qt (8.5 liters, 7.5 Imp qt)

SUBARU SUPER COOLANT

The indicated coolant quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other factors. For more details about maintenance and service, refer to “Cooling system”  P466.

    Electrical system

Battery type

Q-85

Alternator

12 V-150 A

Spark plugs

DILKAR7Q8 (NGK)

    Tires

Tire size

225/60R17 99H

225/55R18 98H

Wheel size

17 6 7 J

18 6 7 J

Pressure

Front

33 psi (230 kPa, 2.3 kgf/cm2)

35 psi (240 kPa, 2.4 kgf/cm2)

Rear

32 psi (220 kPa, 2.2 kgf/cm2)

33 psi (230 kPa, 2.3 kgf/cm2)

Wheel nut tightening torque

89 lbf·ft (120 N·m, 12 kgf·m)*1

*1: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the end of the wheel nut wrench. If you have tightened the wheel nuts by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible. For the wheel nut tightening procedure, refer to “Changing a flat tire”  P429.

    Temporary spare tires

U.S.-spec. models and Canada-spec. models

Other models

Temporary spare tire size

T145/80 D17

185/65 R17

Temporary spare tire inflation pressure (recommended cold tire inflation pressure)

60 psi (420 kPa, 4.2 kgf/cm2)

42 psi (290 kPa, 2.9 kgf/cm2)

    Brake pedal

in (mm)

Pedal clearance

2.56 (65)*

Pedal free play

0.02 - 0.11 (0.5 - 2.7)

*: Minimum value when pedal is operated with a force of 110 lbf (490 N, 50 kgf)

    Brake disc

If you need information on the usage limit value of brake discs and the method for measuring them, we recommend that you consult your SUBARU dealer.

    Brake pad

in (mm)

Brake pad wear limit

0.06 (1.5)


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