Subaru Impreza 2.2L MT - Manual (Page 268)

IMPREZA U.S.A. (E)
10-12
OM-H2756
SAE viscosity number and applicable
temperature
J
Recommended grade and viscosity under severe driving condi-
tions
If the vehicle is used in desert areas, in areas with very high tempera-
tures, or used for heavy-duty applications such as towing a trailer, use of
oil with the following grade and viscosities is recommended.
API classification: SJ or SH
SAE viscosity No.: 30, 40, 10W-50, 20W-40, 20W-50
Cooling system, hoses and connections
Your vehicle employs an electric cooling fan which is thermostatically
controlled to operate when the engine coolant reaches a specific tem-
perature.
If the radiator cooling fan does not operate even when the engine cool-
ant temperature gauge exceeds the normal operating range, the circuit
of the cooling fan may be defective. Check the fuse and replace it if nec-
essary. If the fuse is not blown, have the cooling system checked by your
SUBARU dealer.
If frequent addition of coolant is necessary, there may be a leak in the
engine cooling system. It is recommended that the cooling system and
connections be checked for leaks, damage, or looseness.