TOHATSU MFS 20C User Manual

3-6
Maintenance
4st 9.9/15/20 2008
5) Replacement of Engine Oil
1. Oil Level
Oil Level Gauge
2. Oil Specification
Engine Oil
-20 -10 0 10 20
Ambient temperature (°C)
30 40
10W – 40
10W – 30
3. Engine Oil Replacement Procedure
Use of engine oil containing dirt or water can significantly
shorten the lives of rotating and sliding parts of engine.
Oil replacement procedure:
1. Stop engine, tilt-up outboard motor, and lock with tilt
stopper 1.
2. Incline outboard motor so that drain bolt 2 is directed
downward.
3. Remove top cowl and then oil filler cap 3.
4. Place drain oil pan below drain bolt 2.
5. Remove drain bolt 2 to drain oil.
6. Tighten drain bolt 2.
Note: Apply engine oil to the washer (gasket) of drain
bolt 2.
7. Disengage tilt lock and tilt down outboard motor.
8. Pour new engine oil into oil inlet 4 until oil level
reaches upper limit mark of oil level gauge 5.
9. Attach oil filler cap 3 and oil level gauge 5, start and
run engine for 5 minutes to warm up.
10. Stop engine and check oil level and oil leak after 5
minutes.
1
2
3
5
3
4
Quantity of Oil for Full Replacement
Upper Limit 1.2L 1.0L
Lower Limit 0.95L 0.75L
Engine Oil :
4 Stroke Engine Oil
API: SE, SF, SG, SH, SJ, SL, SM
SAE: 10W-30, 10W-40
NMMA：FC-W Certified 10W-30/40
Quantity of Engine Oil :
(including oil filter) : 1.2L (1.3qt)
(not including oil filter) : 1.0L (1.1qt)
OIL
Use oil with viscosity that is suited to ambient air
temperature of the operating region.
When oil filter is
replaced
When oil filter is not
replaced
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TOHATSU MFS 20C Specifications

General

Brand	TOHATSU
Model	MFS 20C
Category	Outboard Motor
Language	English