Reply to "My car stinks!"

I suspect there's more to your problem. Stuff inside the tank should not be making smells noticable inside the car because it is pretty well sealed, except for the small hose going to the charcoal cannister and PCV, and if its an 'L' model, the large hose that connects the outside fill vent to the tank. It's pretty common to have this large connector hose rupture, and that would make smells. If I was you, I'd replace 100% of the rubber hoses on this car anyway- fuel, brakes, water and heater- before something old lets go and causes grief. The only other thing that comes to mind is rust perforations in the steel tank itself. Such things can be fixed but the tank's gonna have to come out firts, and that means the engine & tranny must come out first- not a pleasant task to do by yourself.