Recommended Grade And Viscosity Under; Synthetic Oil - Subaru 2005 Forester Owner's Manual

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-30 -20 -10
0
-20
0
20
40
5W-30*
10W-30, 10W-40
SAE viscosity number 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.
10 20 30 40
60
80 100
UGB084BA
Recommended grade and viscosity
under severe driving conditions
If the vehicle is used in desert areas, in areas with very
high temperatures, or used for heavy-duty applica-
tions such as towing a trailer, use of oil with the follow-
ing grade and viscosities is recommended.
API classification SL (or SJ):
SAE viscosity No.:
30, 40, 10W-50, 20W-40, 20W-50

Synthetic oil

You can use synthetic engine oil that meets the same
requirements given for conventional engine oil. When
using synthetic oil, you must use oil of the same clas-
sification, viscosity and grade shown in this owner's
manual, and must follow the oil and filter changing in-
tervals shown in the maintenance schedule.
Maintenance and service
– CONTINUED –
11-15

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