Fuel Octane Rating - Subaru 2006 Legacy Owner's Manual

Fuel:
2.5-liter non-turbo models
Use only unleaded gasoline with an octane rating of 87 AKI or
higher.
2.5-liter turbo models and 3.0-liter models
Use premium unleaded gasoline with an octane rating of 91 AKI or
higher. For temporary purposes if premium unleaded gasoline is
not available, you may use regular unleaded gasoline with an oc-
tane rating of 87 AKI or higher. For optimum engine performance
and driveability, it is required (for 2.5-liter turbo models), and rec-
ommended (for 3.0-liter models) that you use premium grade un-
leaded gasoline.

Fuel octane rating

This octane rating is the average of the Research Octane and Mo-
Cold tire pressure:
Tire size
Wheel size
Pressure Front
Rear
Rear at trailer
towing
Temporary Size
spare tire
Pressure
GAS STATION REFERENCE
P205/50R17 88V
2
33 psi (230 kPa, 2.3 kgf/cm )
2
32 psi (220 kPa, 2.2 kgf/cm )
T135/80R16
tor Octane numbers and is commonly referred to as the Anti Knock
Index (AKI). Refer to "Fuel" section in this manual.
Fuel capacity:
16.9 US gal (64 liters, 14.1 Imp gal)
Engine oil:
Use only API classification SM with the words "ENERGY CON-
SERVING" and the ILSAC certification mark (starburst mark) dis-
played on the container.
Engine oil capacity:
2.5-liter models: 4.2 US qt (4.0 liters, 3.5 Imp qt)
3.0-liter models: 5.8 US qt (5.5 liters, 4.8 Imp qt)
215/45ZR17
17 x 7 JJ
35 psi (240 kPa, 2.4 kgf/cm
33 psi (230 kPa, 2.3 kgf/cm
–
T135/70D17
60 psi (420 kPa, 4.2 kgf/cm
P225/55R17 95V
2
) 32 psi (220 kPa, 2.2 kgf/cm
2
) 30 psi (210 kPa, 2.1 kgf/cm
32 psi (220 kPa, 2.2 kgf/cm
T155/70D17
2
)
2
)
2
)
2
)