Subaru WRX & WRX STI Manuals 2010 Impreza WRX & WRX STI Owner’s Manual | Page 332
11-12
Maintenance and service
& Recommended grade and
viscosity
capabilities
Oil grade:
ILSAC GF-4, which can be identified with
the ILSAC Certification Mark (Starburst
Mark)
or API classification SM with the words
“ENERGY CONSERVING”
These recommended oil grades can be
identified by looking for either or both of
the following marks displayed on the oil
container.
ILSAC Certificati