I don't know if they still sell it but I bought 6 spray cans when I had my 95 Bronco ,I made sure it was done properly. Never did have a rust problem.

 

wasn't there a whole Seinfeld episode about this?

 

yup

 

Dusty-

3 years isn't enough time to get it all rusted out. And that is with a econo-box, they don't have to put up with the same kind of under-carage abuse as a truck does.

I wish the people who bought my 1967 Dodge D100 Sweptline truck sprayed the under body! Lots of salt and rock related rust under there!