|
I got my cap at a regular auto parts store - from what I can see, the cap will release coolant to the bottle when the pressure in the system reaches the value printed on the cap, and has a check valve that allows coolant back into the system as the engine cools.
The bottle should have an overflow and a regular cap.
When I started to use the system I filled the radiator to the top and filled the bottle a little less than half full.
Then I observed what happened when the engine was warmed up and fully cooled.
Adjust to suit.
|