Mitsubishi 3000GT Service Manual page 44

SELECTION OF COOLANT
COOLANT
Relation between Antifreeze Concentration and Specific Gravity
Engine coolant temperature "C (OF) and specific gravity
Example
The safe operating temperature is -15°C (5°F) when the measured specific gravity is 1.058 at the coolant temperature
of 20°C (68°F).
Caution
1. If the concentration of the coolant is below 30%, the anti-corrosion property will be adversely
affected. In addition, if the concentration is above 60%, both the anti-freeze and engine cooling
properties will decrease, affecting the engine adversely. For these reasons, be sure to maintain
the concentration level within the. specified range.
2. Do not use a mixture of different brands of anti-freeze.
necommenaea LuDrlcants ana LuDricant
GENERAL
TSB Revision
Freezing Safe operating
temperature temperature
Engine coolant
concentration
(Specific
volume)
50
55
60