Subaru Robin RGX2900 - Manual (Page 13)

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4. PRE-OPERATION CHECKS
Upper level
Oil filler cap
(Oil gauge)
Lower level
CHECK ENGINE OIL
Before checking or refilling oil, be sure
generator is located on stable and level
surface with engine stopped.
■ Remove oil filler cap and check the
engine oil level.
■ If oil level is below the lower level line,
refill with suitable oil (see table) to
upper level line. Do not screw in the oil
filler cap when checking oil level.
■ Change oil if contaminated.
(See "How-To" Maintenance.)
Recommended engine oil:
Use 4-stroke automotive detergent
oil of API service class SE or
higher grade (SG, SH or SJ is
recommended). SAE 10W-30
or 10W-40 is recommended for
general, all-temperature use. If
single viscosity oil is used, select
the appropriate viscosity for the
average temperature in your area.
Ambient
temperature
Single grade
Multigrade
5W
10W
20W
#20
#30
#40
10W-30
10W-40
Oil capacity (Upper level) : L(U.S. gal)
RGX2900 . . . . . . . . . . . . . . . . 0.6 (0.15)
RGX3600 . . . . . . . . . . . . . . . . 0.6 (0.15)
RGX4800 . . . . . . . . . . . . . . . . 1.0 (0.26)
RGX6500 . . . . . . . . . . . . . . . . 1.2 (0.32)
RGX7500 . . . . . . . . . . . . . . . . 1.2 (0.32)