Subaru WRX & WRX STI Manuals 2015 WRX & WRX STI Owner's Manual | Page 470

Specifications/Specifications

12-5

! 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.

Oil grade

SAE viscosity No. and
applicable temperature
5W-30 synthetic oil is the required oil
for optimum engine performance and
protection. Conventional oil may be
used if synthetic oil is unavailable.

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)

*: If 5W-30 synthetic oil is not available, · Changing the oil:
5W-40 conventional oil may be used if
4.2 US qt (4.0 liters, 3.5 Imp qt)
replenishment is needed but should be
changed to 5W-30 synthetic oil at the
Except STI:
next oil change.
· Adding the oil from L to F level:
1.1 US qt (1.0 liter, 0.9 Imp qt)

or

API (American Petroleum Institute) classification SM with the
words “ENERGY CONSERVING” or SN with the words
“RESOURCE CONSERVING”

Engine oil capacity

ILSAC (International Lubricant
Specification Advisory Committee) GF-4 or GF-5, which can be
identified with the ILSAC certification mark (Starburst mark)

· 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)

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