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The top position of the symbol shows service class
such as API SERVICE CLASS SG. The symbol may
show additional categories such as SG/CC, CD. The
center portion shows the viscosity grade such as SAE
30 in the example. If the bottom portion shows
“Energy Conserving”, it means that oil is intended to
improve fuel economy in passenger car engines.
Checking Oil
The importance of checking and changing crankcase
oil cannot be overemphasized.
Check oil BEFORE EACH USE when the engine is cool
and the oil has drained back into the sump. Add oil, if
low, to bring level up to, but not over, the ‘Fw mark on
the dipstick.
Oil should always be checked while engine is off and
on a level surface.
With threaded plug-type dipstick, remove and wipe oil
off--reinsert, but do not turn plug in. To check oil level,
shoulder plug on top of hole. After checking, again
turn plug all the way into crankcase.
With extended oil fill tube and dipstick, push dipstick
all the way down in tube then take reading.
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L
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 over the “F” mark
on the dipstick.
Changing Oil
For a new engine, change oil after the first 5 hours of
operation and then every 25 hours of operation
thereafter.
Drain oil while engine is still warm from operation--it
flows freely and carries away more impurities. (See
Engine Identification illustration for location of drain
PWJ
Remove the oil drain plug and oil fill cap. Tilt the
engine slightly towards the oil drain to obtain better
drainage.
After draining, reinstall drain plug. Make sure it is
tightened securely. Fill with proper viscosity oil to “F”
mark on dipstick. Always check level on dipstick
before adding more oil.
Make sure the engine is level when filling and checking
oil.
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