Double Check Your Radiator Cap (for Coolant Recovery Systems)

[Dibbons]

The "science" behind the correct cap can be a little tricky to comprehend.

 

[pnora]

Interesting. One item I always looked for was the rubber seal where the cap seals against the top of the radiator filler neck. All the non recovery types had a thin metal plate that w
went on the top of the filler neck.