Ce rtified – Subaru 2005 Impreza User Manual
Page 398
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11-17
Maintenance and service
– CONTINUED –
New API Certification Mark (Starburst Mark)
In choosing an oil, you want the proper quality and vis-
cosity, as well as one that will add to fuel economy.
The following table lists the recommended viscosities
and applicable temperatures.
When adding oil, different brands may be used togeth-
er as long as they are the same API classification and
SAE viscosity as those recommended by SUBARU.
SAE viscosity No. and applicable temperature
*: 5W-30 is preferred.
Engine oil viscosity (thickness) affects fuel economy.
Oils of lower viscosity provide better fuel economy.
However, in hot weather, oil of higher viscosity is re-
quired to properly lubricate the engine.
Use only engine oil with the recommended
grade and viscosity.
A
M
E
R
IC
AN
PET
ROLEUM
IN
ST
IT
U
T
E
CE
RTIFIED
HSB023AA
5W-30*
10W-30, 10W-40
-30 -20 -10
0
10
20
30
40
-20
0
60
20
80
100
40
UGB084BA