2017 WRX Owner's Manual

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! Alternative engine oil

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

NOTE

. Each quantity indicated here is only a guideline. The necessary quantity for replacement may differ slightly depending on

the temperature and other factors.

. In choosing an oil, you want the proper quality and viscosity, as well as one that will enhance fuel economy. Oils of lower

viscosity provide better fuel economy. However, in hot weather, oil of higher viscosity is required to properly lubricate the

engine. The following table lists the recommended viscosities and applicable temperatures.

. When adding oil, different brands may be used together as long as they are the same API classification and SAE viscosity

as those recommended by SUBARU.

Oil grade

SAE viscosity No. and

applicable temperature

Engine oil capacity

API (American Petroleum Insti-

tute) classification SN with the

words “RESOURCE CONSER-

VING”

ILSAC (International Lubricant

Specification Advisory Commit-

tee) GF-5, which can be identi-

fied with the ILSAC certification

mark (Starburst mark)

5W-30 synthetic oil is the required oil

for optimum engine performance and

protection. Conventional oil may be

used if synthetic oil is unavailable.

*: If 5W-30 synthetic oil is not available,

5W-40 conventional oil may be used if

replenishment is needed but should be

changed to 5W-30 synthetic oil at the

next oil change.

STI:

· Adding the oil from L to F level:

1.1 US qt (1.0 liter, 0.9 Imp qt)

· Changing the oil and oil filter:

4.5 US qt (4.3 liters, 3.8 Imp qt)

· Changing the oil:

4.2 US qt (4.0 liters, 3.5 Imp qt)

Except STI:

· Adding the oil from L to F level:

1.1 US qt (1.0 liter, 0.9 Imp qt)

· Changing the oil and oil filter:

5.4 US qt (5.1 liters, 4.5 Imp qt)

· Changing the oil:

5.2 US qt (4.9 liters, 4.3 Imp qt)

Specifications/Specifications

– CONTINUED –

12-5

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Owner's Manual - Page 540