I am a new owner of a 1994 960 Volvo. I noticed that water is sipping into the gasket surround the gas tank cap and getting collected there. The problem only caused inconvenience as I have to drain off/soak up the water each time I need to fill up my gas tank. Does any one have any idea how this could happen and how to fix it? The Gas fill lid seems to be closing normally, i.e. I don't see obvious gap when it is closed that could possibly allow rain to drop in directly. And I suppose the gasket surrounding the intle port of the gas tank should be guiding the water to the outside of the area to drain it off.