OM 2012
WARNING: WHEN REMOVING CAP FROM A VERY HOT RADIATOR, DO NOT
TURN CAP PAST SAFETY STOP UNTIL ALL PRESSURE OR STEM
HAS ESCAPED.
CAUTION: ALLOW ENGJNE TO COOL BEFORE ADDING COOLANT.
NOTE: Do not attempt to repair the valve in a radiator cap. Replace with a new
cap.
(3) I&al lat ion
When installing the cap be sure it is turned clockwise as far as it will go so that
the pressure retaining valve will be functional.
C. Warm Weather Operation
The engine will run cooler during warm weather operation if water is used in the cool-
ing system instead of an antifreeze solution.
To keep the cooling system free of rust and
sludge during warm weather opemtion,
odd a cooling system conditioner that is compat-
ible with alwninun. instructions for use of the conditioner are printed on each can.
CAUTION: USE ONLY A CORROSION INHISITOR THAT IS COMPATIBLE WITH
ALUMINUM. DO NOT USE INHJBITORS LABELED AS “ACID NEU-
TRALIZE R”.
D. Cold Weather Operation
(1)
(2)
(3)
2-1
Page 14
General
A permanent type, gthylene Glycol) antifreeze is recommended for use in the
cooling system.
,
CAUT10N: (a) DO NOT USE “METHANOL” OR ALCOHOL AS AN ANTI-
FREEZE.
(b) DO NOT USE TWO DIFFERENT TYPES OF ANTIFREEZE.
MIXED SOLUTIONS (TWO TYPES) MAKE IT IMPOSSIBLE
TO DETERMIN IF THE COOLING SYSTEM HAS ADEQUATE
PROTECTION AGAINST FREEZING.
Coolant solution check
Check the solution frequently to be sure the cooling system has sufficient pro-
tection against freezing.
NOTE: (a) When testing the solution, be sure the coolant is atoperating
temperature.
(b) Follow manufacturer‘s instructions on tester.
Coolant solution preparation
The following table (Figure 10) indicates the freezing points of solutions vary-
ing from 16% antifreeze to 65% antifreeze.
Percentages are based on permanent
type (Ethylene Glycol) antifreeze.
Most antifreeze containers hove a similar
table printed on the label.
Aug 25,/85
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