Subaru XT 1988 Service Manual page 26

GENERAL INFORMATION 1-3
API
SAE viscosity No. and Applicable Temperature
Clas-
ITEM
sifica-
tion
(OF)
-30 0 30
60 90
(oC)
-34 -18 0 16 32
SE
I
10W-30, 10W-40
I
• Engine oil
or
<:
SF
5W-30
I
~
I
90
• Transmission and
I
85W
differential gear oil
GL-5
<
80W
I
.4WD rear differential
gear oil
< >
75W-90, *80W-90
L1-513
Fig. 31
a. Each oil manufacturer has its base oil and additives. Thus, do not mix two or more brands. (Except engine oil)
b. When replacing engine oil, it does not matter if the oil to be added is a different brand from that in the engine, however use
oil having the API classification and SAE viscosity No. designated by Subaru.
c. SAE 50W·30 is not recommended for sustained high speed driving.
d. If vehicle is used in desert areas or areas with very high temperatures or for other heavy duty applications, the following
viscosity oils may be used:
30,40, lOW-50, 2OW-40, 2OW-50
e. *For differential gear oil (AT)
Coolant Specifications
SUBARU
Specific gravity
Lowest atmospheric coolant-to-
Freezing point
anticipated temperature *water ratio at 10°C at 20°C at 30°C at 40°C
at 50°C
(Volume) % (50°F)
(68°F) (86°F) (104°F) (122°F)
Above-30°C (-22°F)
50 - 50
1.078 1.074
1.069
1.063 1.057
-36°C (-33°F)
* It is recommended that distilled water be used.
a. Avoid using any coolant or only water other than this designated type to prevent corrosion.
b. SUBARU's engine is aluminum alloy, so special care is necessary.
15