Maintenance Of Llc; Replacement Intervals Of Llc; Llc Concentration; Table 6-3 Recommended Llc Concentration - Mitsubishi S4S-DT Operation & Maintenance Manual

Maintenance of LLC

Should coolant or LLC be accidentally consumed, induce vomiting immediately and seek medical attention. If LLC
should enter eyes, flush immediately with plenty of water and seek medical attention.
LLC is toxic. Never dispose of coolant containing LLC drained from engine into regular sewage. For disposal of
used coolant, consult LLC distributor.

Replacement intervals of LLC

Be sure to renew LLC at the intervals specified in the maintenance schedule of this manual.
Failure to renew LLC may cause malfunctions due to performance degradation of preventing rust and cavitation.
The coolant mixed with LLC which Mitsubishi Heavy Industries, Ltd. recommended expires in 2 years. Be sure to
change coolant at least once every 2 years.

LLC concentration

Keep the LLC concentration of 30 % (GLASSY) and 40 % (PG GLASSY) on any temperature conditions. LLC of
less than 30 % concentration does not provide sufficient corrosion protection. If the LLC concentration is lower than
10 %, it may accelerate corrosion.
When adding coolant, do not add plain water. Always use coolant with the same LLC concentration.
Item
GLASSY
LLC concentration
(%)
PG GLASSY
Note: (a) If the outside air temperature is -30 °C or less, use "GLASSY".
(b) The concentration above is based on Mitsubishi Heavy Industries, Ltd. genuine LLC "GLASSY long life
coolant (Ethylene glycol type)" or "PG GLASSY long life coolant (Non-amine type)".
For determining the accurate LLC concentration, refer to the instructions for the LLC used.

Table 6-3 Recommended LLC concentration

Type External
Green
Red
Lowest ambient temperature
-10 °C [14 °F] -20 °C [-4 °F]
or above or above
30 40
40 55
Chapter 6 COOLANT
-30 °C [-22 °F] -45 °C [-40 °F]
or above or above
50 60
70 -
6-5