Subaru 2003 Legacy - Manual (Page 386)

11-14
B
Recommended grade and viscosity under severe driving
conditions
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 SL (or SJ): SAE viscosity No.: 30, 40, 10W-50,
20W-40, 20W-50
Cooling system
WARNING
Never attempt to remove the radiator cap until the engine has
been shut off and has cooled down completely. Since the coolant
is under pressure, you may suffer serious burns from a spray of
boiling hot coolant when the cap is removed.
CAUTION
D
The cooling system has been filled at the factory with a high
quality, corrosion-inhibiting, year-around coolant which provides
protection against freezing down to –33
°
F (–36
°
C). For adding,
use genuine SUBARU coolant or an equivalent: a mixture of 50%
soft water and 50% ethylene-glycol basis coolant. Use of improp-
er coolants may result in corrosion in the cooling system. It is im-
portant to maintain protection against freezing and corrosion,
even if freezing temperatures are not expected. Never mix differ-
ent kinds of coolant.
D
Do not splash the engine coolant over painted parts. The alco-
hol contained in the engine coolant may damage the paint sur-
face.
B
Hose and connections
Your vehicle employs an electric cooling fan which is thermostatically