adding oil SUBARU LEGACY 2002 3.G Owners Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 2002, Model line: LEGACY, Model: SUBARU LEGACY 2002 3.GPages: 466, PDF Size: 4.35 MB
Page 383 of 466

 Maintenance and service11-13
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In choosing an oil, you want the proper quality and viscosity, as well 
as one that will add to fuel economy. The following table lists the rec-
ommended viscosities and applicable temperatures.
When adding oil, different brands may be used together as long as
they are the same API classification and SAE viscosity as those rec-
ommended by SUBARU. 
Engine oil viscosity (thickness) affects fuel economy. Oils of lower vis- 
cosity provide better fuel economy. However, in hot weather, oil of
higher viscosity is required to properly lubricate the engine.
 OM-H2756
SAE viscosity numbr and applicable temperature
  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 a 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  
Page 384 of 466

11-14
Cooling systemWARNING
Never attempt to remove the radiator cap until the engine has 
been shut off and has cooled down completely. Since the coolantis under pressure, you may suffer serious burns from a spray ofboiling hot coolant when the cap is removed.
CAUTION
  The cooling system has been filled at the factory with a high
quality, corrosion-inhibiting, year-around coolant which providesprotection 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.  Do not splash the engine coolant over painted parts. The alco-
hol contained in the engine coolant may damage the paint sur-face.
  Hose 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
coolant temperature gauge exceeds the normal operating range, the
cooling fan circuit may be defective. Check the fuse and replace it if
necessary. 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 systemand connections be checked for leaks, damage, or looseness.