Subaru WRX & WRX STI Manuals 2018 WRX & WRX STI Owner’s Manual | Page 526

12-6
Specifications/Specifications
& Manual transmission, front differential and rear differential gear oil
Oil
Manual transmission oil
STI
Oil
grade
.
.
Except STI .
Front differential gear oil (CVT
models)
API classification GL-5
(75W-90)* 3
3
SUBARU Extra MT*
API classification GL-5
(75W-90)* 4
Rear differential gear oil
—
.
.
SUBARU Extra MT* 3
API classification GL-5
(75W-90)
API classification GL-5
.
.
SAE viscosity No.
and applicable tem-
perature
75W-90*
90
— — 4.3 US qt (4.1 liters, 3.6 Imp qt) — 1.1 US qt (1.0 liter, 0.9 Imp qt)
1.5 US qt (1.4 liters, 1.2 Imp qt) 0.8 US qt (0.8 liters, 0.7 Imp qt)
*: recommended
Oil ca-
pacity* 1
STI
Except STI 3.5 US qt (3.3 liters, 2.9 Imp qt)
Remarks* 2
“Front differential gear oil (CVT “Front differential gear oil (CVT models) and rear
“Manual transmission oil” F11-22 models) and rear differential
differential gear oil” F11-23
gear oil” F11-23
*1: The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. Check the oil level after refilling the gearbox with oil.
*2: For more details about maintenance and service, refer to the indicated section.
*3: The vehicle is filled at the factory with this oil.
*4: You may use this type of manual transmission oil. However, using this type of oil will detract from driveability and fuel efficiency.