Can anyone confirm if the gas cap on a 62/63 Chrysler is supposed to be vented or not? I have a vented one on there, but if I park on a hill, with the gas tank at the lower point with a full tank, gas will leak out from the gap. Does this mean it should have a non-vented cap?
I just wanted to be sure in case I would over-pressurizing the tank by swapping caps.
The car has the filler in the rear of the car.
Thank you
