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MTD 139cc - Operating Your Engine; Know Your Engine; Pre-Operation Check: Oil Recommendations; Check Oil Level

MTD 139cc
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5
3





IMPORTANT: This engine is shipped without gasoline
or oil in the engine. Running the engine with insufficient
oil can cause serious engine damage and void the
engine warranty.
• Beforestartingengine,fillwithoil.Donotover-fill.Oil
capacity is about 0.6 liter (20 oz).
Use a 4-stroke, or an equivalent high detergent,
premium quality motor oil certified to meet or exceed
U.S. automobile manufacturers requirements for service
classification SG, SF. Motor oils classified SG, SF will
show this designation on the container.
SAE 10W-30 is recommended for general, all tem-
perature use. If single viscosity oil is used, select the
appropriate viscosity for the average temperature in your
area from the chart to the right.

1. Single Viscosity
2. Multi Viscosity
IMPORTANT: Using nondetergent oil or 2-stroke engine
oil could shorten the engine’s service life.
Check Oil Level
IMPORTANT: Be sure to check the engine on a level
surface with the engine stopped.
1. Remove the oil filler cap and wipe the dipstick clean.
See Figure 3-3.
Figure 3-1 - The major components of the engine. The shroud on your engine may differ.
Starter
Grip
Oil Fill Cap
Oil Drain
Muffler
Spark Plug
Fuel Cap
Air Cleaner
Read this section before starting your lawn mower engine. Compare the illustrations in Figure 3-1 with your lawn
mower engine to familiarize yourself with the location of various controls and adjustments.
IMPORTANT
This engine is shipped
without gasoline
or oil in the engine.
Running the engine
with insufficient oil can
cause serious engine
damage and void the
engine warranty.
IMPORTANT
Using nondetergent
oil or 2-stroke engine
oil could shorten the
engines service life.
Be sure to check
the engine on a level
surface with the engine
stopped.
-30º -20º
10w
20w
20
30
40
20w40, 20w50
15w40, 15w50
10w40
10w30
-10º
20º 40º 60º 80º 100º
10º 20º 30º 40º
-20º
(ºC)
(ºF)
1
2
Starter
Grip
Oil Fill Cap
Oil Drain
Muffler
Spark Plug
Fuel Cap
Air Cleaner

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