Engine Oil - Subaru Tribeca Quick Reference Manual

Fuel
Use regular unleaded gasoline with an octane rating of 87 AKI or higher.
Fuel Capacity
panel, approximately 2.6 U.S. gallons of fuel remain.
engine light on the instrument panel may stay on due
to a missing or loose fuel filler cap (the cap should be
tightened until a click is heard).

Engine Oil

Use only the following oils:
ILSAC certification mark (Starburst mark).
Engine Oil Capacity
23 23