Isuzu AU-4LE1T, Maintenance Manual

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CAUTION:
1. Prevent dust particles from entering through filler port at
replenishment. Be careful, entry of dust particles may
cause engine damage or accident.
2. Replenishment of oil above "Max" level or below "Min" level
may cause engine damage or accident. Drain oil to the
"Max" level if the oil level is above "Max" level. Also,
replenish oil to the "Max" level if the oil level is below "Min"
level.
(2) Check after Oil and Filter Changes
The remote-type oil filter is used so that it takes time to pressure-feed
oil to each part of engine after oil filter is changed. Idle approx. 30
seconds at the first start-up after oil filter is changed. Do not perform
sudden loading or rapid acceleration. In addition, the time to
pressure-feed oil can be shortened by filling engine oil into oil filter.
Oil leakage check
Idle the engine to raise the oil pressure, then check for oil leakage.
Oil level recheck
Stop the engine and keep it stationary about twenty minutes.
Use the dipstick to recheck the oil level.
Replenish with engine oil, if necessary, to the specified level.
CAUTION:
When the engine is started, the oil level will slightly drop from
the initial level as the oil fully comes into the entire oil circuit.