Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 10

ID-6

Identification

IDENTIFICATION

RECOMMENDED MATERIALS

RM

Page

1.

Recommended Materials . . . . . . . . . . . . . . . . . . ...2

RM-2

Recommended Materials

RECOMMENDED MATERIALS

1. Recommended Materials

A: RECOMMENDED MATERIALS

1. GENERAL

To insure the best performance, always use the specified oil, gasoline, adhesive, sealant, etc. or a substitute

of equivalent quality.

2. FUEL

Always use gasoline of the same or higher octane value than specified in the owner’s manual. Ignoring the

specifications will result in damage or poor performance of engine and fuel injection system. To gain proper

performance, always use specified gasoline.
Unleaded gasoline
In order to reduce air pollution, use unleaded gasoline for the vehicle equipped with catalytic converter. Using

leaded gasoline may damage the catalytic converter.

3. LUBRICANT

Use the lubricants shown in the table below, or equivalent. See the table below to choose the correct SAE

viscosity.

Lubricant

Recommended materials

API standard

ILSAC standard

Engine oil
Choose oil suitable for the
standard from the right.

SN or SM grade “Resource conserving” or

“Energy conserving”

Those with the above API service labels

GF-5 or GF-4

Those with the above ILSAC certification mark

(Starburst mark)

Manual transmission oil

GL-5

—

Rear differential gear oil

GL-5

—

RM-00076

A

M

E

R

IC

A

N

PE

TROLEUM

IN

S

T

IT

U

T

E

FOR

GASOLINE

ENGINES

C E

R TIF E

I D

RM-00002

RM-3

Recommended Materials

RECOMMENDED MATERIALS

SAE viscosity No. and applicable temperature

Engine oil

(1) 5W-30 (synthetic oil) Specified

Manual transmission gear oil, front differential gear oil and rear differential gear oil

(˚F)

–22

–4

14

50

68

86

104

(˚C)

–30

–20

–10

0

10

20

30

40

32

RM-00075

(1)

(˚C)

–22

–4

14

50

68

86

104

(˚F)

–30

–20

–10

0

10

20

30

40

75W-90

90

32

RM-00079