Subaru 2001 Legacy Owner's Manual page 23

GAS STATION REFERENCE
Fuel:
2.5 Liter models:
Use only unleaded gasoline with an octane rating of 87
AKI or higher.
3.0 Liter models:
Use premium unleaded gasoline with an octane rating of
91 AKI or higher. Regular unleaded gasoline with an oc-
tane rating of 87 AKI may be used if necessary. For opti-
mum engine performance and driveability, it is recom-
mended that you use premium grade unleaded gasoline.
Fuel octane rating:
This octane rating is the average of the Research Octane
and Motor 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 SJ or SH with the words
" ENERGY CONSERVING II"
or the New API 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
6.0 US qt (5.7 liters, 5.0 Imp qt)
Cold tire pressure:
See the label located under the driver's door latch.