.
MAINTENANCE
MAINTENANCE PROCEDURE
When deciding the ratio of antifreeze to water, check the lowest temperature in the past, and decide from the mixing
table given below.
It is actually better to estimate and temperature about 10
°
C (18
°
F) lower when deciding the mixing ratio.
The mixing ratio depends on the ambient temperature, but it should always be a minimum of 30% by volume
(antifreeze/total amount of coolant x 100).
The freezing temperature of undiluted antifreeze is -15
°
C (5
°
F). Do not store undiluted antifreeze at a temperature
of below -15
°
C (5
°
F).
Mixing rate of water and antifreeze
Min. atmospheric
temperature
°
C
Above -10
-15
-20
-25
-30
°
F
Above 14
5
-4
-13
-22
Amount of antifreeze
Liters
3.2
3.8
4.3
4.8
5.3
US gal
0.85
1.00
1.14
1.27
1.40
Amount of water
Liters
7.3
6.7
6.2
5.7
5.2
US gal
1.92
1.77
1.63
1.50
1.37
Volume ratio
%
30
36
41
46
50
WARNING
Antifreeze is flammable, so keep it away from flame.
Antifreeze is toxic. When removing the drain plug, be careful not to get water containing antifreeze on you. If it gets in your eyes,
flush your eyes with large amount of fresh water and see a doctor at once.
Use antifreeze and appropriate water for diluting. (for details, see "COOLANT AND WATER FOR DILUTION (PAGE
4-5)")
We recommend use of an antifreeze density gauge to control the mixing proportions.
Prepare a container whose capacity is larger than the specified coolant volume to catch drained coolant.
Prepare a hose to supply antifreeze coolant and water.
1. Stop the engine.
2. Open engine hood.
3. Check that the coolant temperature has gone down enough to
make it possible to touch the radiator cap surface by hand,
then turn radiator cap (1) slowly until it contacts the stopper to
release the pressure.
4. Following this, push radiator cap (1), turn it until it contacts the
stopper, then remove it.
4 - 22
Summary of Contents for PC78MR-6
Page 2: ... 1 1 ...
Page 4: ... FOREWORD FOREWORD 1 3 ...
Page 5: ... FOREWORD FOREWORD 1 4 ...
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Page 20: ... SAFETY SAFETY LABELS LOCATION OF SAFETY LABELS 2 5 ...
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