While preparing the sightseer for winter, I recalled that once i had a coolant leak and thought no more of it since it didn't occur again.I had asked our local Ford dealer to check it while in for service and their report was nothing visible.
So I thought I would reexamine the area that was suspect which was the hose from the coolant manifold to the bottom of the radiator. well, I took the hose clamp (spring type)in my pliers and low and behold it was broke in three places. Replaced,no leak. terry
terry & lisa with trevor (our boston )in memory, 2005 winne sightseer 30b