Cool Can. Use one or not?

I traveled with my son all over the states racing. We have seen top contenders keep their fuel in refrigerators in their race trailers and pour it in at staging. The fact is the colder the charge the more power you recieve from what you induce. Our tank and fuel lines were usually sweating also .


I've seen the cold cans work, especially when there are other class limitations like Stock Eliminator, or crate engine classes. But Ive never seen the fridge deal. Cool idea (filed away for some other time :) )