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SERVICING AND MAINTENANCE 483
Points To Remember
NOTE:
When the vehicle is stopped after a few miles/kilometers of
operati
on, you may observe vapor coming from the front of
the engine compartment. This is normally a result of mois
-
ture from rain, snow, or high humidity accumulating on the
radiato
r and being vaporized when the thermostat opens,
allowing hot engine coolant (antifreeze) to enter the radiator.
If an examination of your engine compartment shows no
evidenc
e of radiator or hose leaks, the vehicle may be safely
driven. The vapor will soon dissipate.
• Do not overfill the coolant expansion bottle.
• Check t
he coolant freeze point in the radiator and in the
coolan
t expansion bottle. If engine coolant (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
• If frequent engine coolant (antifreeze) additions are
requir
ed, the cooling system should be pressure tested for
leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimu
m of 50% OAT coolant (conforming to MS.90032)
and distilled water for proper corrosion protection of your
engine which contains aluminum components.
• Make sure that the coolant expansion bottle overflow
hoses
are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipp
ed with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter oper-
ation.
If replacement is ever necessary, install ONLY the
correct
type thermostat. Other designs may result in unsat-
isfactory engine coolant (antifreeze) performance, poor
ga
s mile
age, and increased emissions.
7
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