Try spraying penetrating oil on a small rag and then rub it on the breather valve. Another way is connect a few straws together with heat shrink to make your spray can straw longer. Just make sure you use duct tape on the sprayer nozzle otherwise it will fly away.Smart. I think I'll open up the fill, drop it down to see if anything comes out. Just thinking that if there is extra and its building pressure when hot, it needs to go somewhere. The breather cap to the best of my fingers is not moving. I'll squish a rag with JB penetrant for a few days onto the top cap to see if it will loosen up. I don't know of a good way to spray that breather cap. I'm welcome to any suggestions. THanks ALL.