1990 Honda Accord Owner's Manual - Page 89

1990 Honda Accord Manual

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Cooling System The engine in your Honda contains a number of aluminum parts. Therefore, it requires an antifreeze/coolant specifically formulated to protect the aluminum parts from corrosion. Failure to use a suitable antifreeze/coolant may seriously shorten the life of the engine as the result of rapid corrosion damage. Some antifreeze/coolants, although labeled for use in engines containing aluminum, may not provide adequate protection for your engine. Therefore, use only a Honda RECOMMENDED antifreeze/ coolant. CHECK WITH YOUR AUTHORIZED HONDA DEALER. For best corrosion protection, the mixture of coolant and water must be maintained year-round at 50/50. Concentrations less than 50% coolant may not provide sufficient protection against corrosion and freezing. Concentrations of greater than 6 0 % coolant will impair cooling efficiency and are not recommended. Low-mineral drinking water or distilled water should be mixed with the antifreeze/coolant. Coolant loss should be replenished by a mixture containing the proper concentration of antifreeze and water. Do not mix different antifreeze/coolants. Do not use additional rust inhibitors or anti-rust products, as they may not be compatible with the radiator coolant. ENGINE DAMAGE CAUSED BY IMPROPER COOLANT USAGE IS NOT COVERED BY THE NEW CAR WARRANTY. Checking Coolant Check the coolant level in the reserve tank when the engine is at normal operating temperature. If the level is below the MAX mark, but still visible, add a 50/50 solution of antifreeze and water to bring it up to MAX. If there is no coolant in the reserve tank, the cooling system should be checked for leaks and repaired if necessary. Coolant must then be added to the radiator. RESERVE TANK

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Cooling System
The engine in your Honda contains a number of aluminum
parts. Therefore, it requires an antifreeze/coolant specifically
formulated to protect the aluminum parts from corrosion.
Failure to use a suitable antifreeze/coolant may seriously
shorten the life of the engine as the result of rapid corrosion
damage. Some antifreeze/coolants, although labeled for use in
engines containing aluminum, may not provide adequate pro-
tection for your engine.
Therefore, use only a Honda
RECOMMENDED
antifreeze/
coolant.
CHECK WITH YOUR AUTHORIZED HONDA DEALER.
For best corrosion protection, the mixture of coolant and water
must be maintained year-round at 50/50. Concentrations less
than 50% coolant may not provide sufficient protection
against corrosion and freezing. Concentrations of greater than
60% coolant will impair cooling efficiency and are not recom-
mended. Low-mineral drinking water or distilled water should
be mixed with the antifreeze/coolant. Coolant loss should be
replenished by a mixture containing the proper concentration
of antifreeze and water.
Do not mix different antifreeze/coolants.
Do not use additional rust inhibitors or anti-rust products, as
they may not be compatible with the radiator coolant.
ENGINE DAMAGE CAUSED BY IMPROPER COOLANT USAGE
IS NOT COVERED BY THE NEW CAR WARRANTY.
Checking Coolant
Check the coolant level in the reserve tank when the engine is
at normal operating temperature.
If the level is below the MAX
mark, but still visible, add a
50/50 solution of antifreeze
and water to bring it up to
MAX.
If there is no coolant in the
reserve
tank,
the
cooling
system should be checked
for leaks and repaired if
necessary.
Coolant
must
then
be
added
to
the
radiator.
RESERVE TANK