I am advised that the more antifreeze the less cooling efficiency so put in just sufficient for the temperatures the car will likely encounter. De-ionised water is better than tap.  
24 November 2020 at 7:03 PM #5597
BartRatkiewicz
Participant

I am advised that the more antifreeze the less cooling efficiency so put in just sufficient for the temperatures the car will likely encounter.

De-ionised water is better than tap.