Engine Oil - Subaru EX35 Service Manual

6. ENGINE OIL

Using engine oil of the correct grade and viscosity greatly lengthens engine life and improves
performance. Too much or too little oil can also result in serious problems, including engine seizure.
6-1 CLASSIFICATION BY OIL GRADE
API (American Petroleum Institute)
Classifi cation
6-2 CLASSIFICATION BY OIL VISCOSITY
SAE (Society of Automotive Engineers)
5W
Single grade
Multigrade
Ambient
temperature
Be sure to use automobile engine oil of the viscosity shown in the table above, depending on environmental
air temperature.
When the air temperature falls below –20℃ or rises above 40℃, be sure to choose engine oil of appropriate
viscosity and grade, according to the prevailing conditions.
* Care must be taken when using multi-grade engine oil, because the oil consumption rate tends to increase
when the air temperature is high.
6-3 ADDING AND CHANGING ENGINE OIL
○ Engine oil inspection and filling up . . . Every time you use the engine
○ Engine oil change . . . . . . . . . . . . . . . First time . . . . . . . . . . .After 20 hours' use
SA SB SC
Grades suited for Robin Engine: SE or higher (SG,SH or SJ in recomended)
10W
20W
#20
#30
10W-30
10W-40
(add engine oil up to the designated maximum level)
Thereafter . . . . . . . . . .Every 100 hours' use
SD SE SF
#40
- 45 -
SG SH SJ