6.2
Section 6
Lubrication System
Operating
Range
Figure 6-3. Oil Level Marks on Dipstick.
NOTE: To prevent extensive engine wear or damage,
always maintain the proper oil level in the
crankcase. Never operate the engine with
the oil level below the L mark or above the F
mark on the dipstick.
Changing Oil and Oil Filter
Changing Oil
Change oil seasonally or every 150 hours of
operation, (more frequently under severe conditions).
Refi ll with service class SG, SH, SJ, or higher oil as
specifi ed in the Viscosity Grades table on page 6.1.
Change the oil while the engine is still warm. The oil
will fl ow more freely and carry away more impurities.
Make sure the engine is level when fi lling or checking
oil.
Change the oil as follows:
1. Clean the areas around one of the drain plugs, oil
fi ll cap, and dipstick.
2. Remove one of the oil drain plugs, oil fi ll cap,
and dipstick. Be sure to allow ample time for
complete drainage.
Oil Drain Plug
Figure 6-4. Oil Drain Plug (Starter Side).
The top portion of the symbol shows service class
such as API SERVICE CLASS SJ. The symbol may
show additional categories such as SH, SG/CC, or
CD. The center portion shows the viscosity grade such
as SAE 10W-30. If the bo om portion shows Energy
Conserving, it means that oil is intended to improve
fuel economy in passenger car engines.
Checking Oil Level
The importance of checking and maintaining
the proper oil level in the crankcase cannot be
overemphasized. Check oil BEFORE EACH USE as
follows:
1. Make sure the engine is stopped, level, and is
cool so the oil has had time to drain into the
sump.
2. Clean the area around the dipstick before
removing it. This will help to keep dirt, grass
clippings, etc., out of the engine.
3. Remove the dipstick; wipe oil off . Reinsert the
dipstick into the tube until fully seated. See
Figure 6-2.
Oil Fill Cap
Dipstick
Figure 6-2. Dipstick and Oil Fill Cap Locations.
4. Remove dipstick and check oil level. The level
should be between the F and L marks. If low,
remove the oil fi ll cap and add oil of the proper
type up to the F mark. Reinstall oil fi ll cap and
dipstick.
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