[VWCw]

I keep my tires inflated at 50psi. Although I use the work "keep" somewhat loosely. The two front ones have slow leaks. One I top up with air about once a month. I'd say it gets down to about 30psi. The other I should be adding air every week. But I forget, or it gets really cold in my unheated garage in the winter and I just don't want to, and my FE starts to suffer. I don't want to replace the tires yet, they all have pretty good thread left.

My question is this- would a cheap can of Fix-a-Flat solve my problem, and therefore keep my FE up? The only reason that I've been hesitant to try it out is that I've heard the stuff is the devil when putting on new tires later on.