90
2. COOLANT
Where the atmospheric temperature falls below freezing point, the cooling
system should be drained after engine operation, but to eliminate the need
for repeated draining and refilling, the use of anti-freeze solution is highly
recommended.
A 50/50 mix Ethylene glycol base antifreeze/tap water (soft water), distilled
water or demineralized water.
(which provides protection to –37°C (–34°F) is recommended for use in
these ISUZU diesel engines).
Concentrations over 65% adversely affect freeze protection, heat transfer
rates, and silicate stability which may cause water pump leakage.
Never exceed a 60/40 mix antifreeze/tap water (soft water), distilled water
or demineralized water.
(which provides protection to about –50°C (–58°F)).
WARNING:
Under some conditions the ethylene glycol in the engine
coolant is combustible. To help avoid being burned when
adding engine coolant, do not spill it on the exhaust system or
engine parts that may be hot. If there is any question, have
this service performed by a qualified technician.
Summary of Contents for AU-4LE1T
Page 25: ...20 Engine model Serial number 4LE1 000000 IMLE0092...
Page 63: ...58 4LE1T Oil drain plug Oil filler cap Oil filler cap Oil level gauge IMLE0094...
Page 64: ...59 4LE1NA Oil drain plug Oil filler cap Oil filler cap Oil level gauge IMLE0095...
Page 79: ...74 C O OPEN Lever Element Cup Drain plug Ring nut Air bleeder plug CLOSE IMLE0059...
