How Much Coolant?
Pure antifreeze is very poor at "heat transfer"
It doesn't absorb heat from the engine easily, and doesn't give it up easily when traveling through the radiator.
Thats why it MUST be diluted with water.
If you don't need the freeze protection of a 50 or 60% mixture, you are better off with a weaker concentration for those hot weather driving days.
The concentration you need is up for you to decide, based on expected temperatures, indoor vs. outdoor storage etc.
If you've seen the owners manual of a newer car (within the last 10 years) You'll probably see that some don't even come with a 50/50 mixture, unless its a "cold climate market". Usually a lower concentration.
:burnout::burnout:
