PROCEDURE TO ADJUST THE CONCENTRATION OF THE COOLANT
To adjust the concentration of coolant according to temperature, find the proper fluid concentration in the diagram 1 and replace the necessary amount of coolant with an undiluted solution of coolant (concentration 50%).
The amount of engine coolant that should be replaced can be determined using the diagram 2. [Example]
Assume that the engine coolant concentration must be increased from 25% to 40%. Find point A, where the 25% line of engine coolant concentration intersects with the 40% curve of the necessary engine coolant concentration, and read the scale on the vertical axis of the graph at height A. The quantity of coolant to be drained is 2.1 l (2.2 US qt, 1.8 Imp qt). Drain 2.1 l (2.2 US qt, 1.8 Imp qt) of coolant from the cooling system and add 2.1 l (2.2 US qt, 1.8 Imp qt) undiluted coolant solution.
If a coolant concentration of 50% is needed, drain all the coolant and refill with the undiluted solution only.
Scheme 102
- Diagram 2