The rubber washers/gaskets inside the oil cap and gas cap that form a seal with the top of the tank threads are both just about toast. The oil cap one was literally falling apart in pieces; I'm sure I lost a small piece or two in the tank. Was able to replace that one ok with an o-ring I found with my dealer, since polaris doesn't give the gaskets separate part numbers. I haven't found anything yet for the gas cap gasket, was looking for ideas. Its pretty flat and wide so I'm not sure that an o-ring is gonna work too well. My dealer is supposed to be checking for me to see if we can get just the gasket, but probably will only be able to buy the whole cap. Any experience with this or ideas would be cool. Thanks.