ticat900

You have a old oddball one and yes they are expensive. $105.00 the one I looked at most others just use a 13 lb automotive cap.

I have looked long and hard at what my next motorhome will be and It will be a Entega Anthem. Its made better(my opinion) and is the best priced luxury motorhome bar none. Its at least 40-50K cheaper than anyone out there in a comparable unit option for option. It kicks Tiffins butt big time in quality and price.

Remember this is applicable only to older AH systems. After 07 they did not have the rad cap system. They have a small bleed valve only plus the standard overflow system.

how do u check the voltage when cranking when it will not crank?

A 38 foot gasser pulling a 5+K jeep at 65MPH will never ever get better than 6.5MPG combined driving. Flat highway no hills shall garner about 1MPG better.