A friend of mine redid a 55 Chev pick-up last winter. I think they painted it in April maybe. The other day he filled with gas in town, drove to my place and where he parked was a bit of a slant. The day warmed up and it seems the gas expanded enough to leak a bit out of the fill pipe and run down the side of the truck. The paint all wrinkled. Why would it do this 6 months after it was painted? The paint should have been cured long ago.