My kid had his buicl stolen years ago They punched a hole in the tank to get gas/I used a screw after it was dry and clean.Then JB weld a piece of sheet metal and more JB.He drove it for 4 years sold it and it was here for like 3 or 4 more.Oh yeah my buddy welded tank just started his tow motor filled the with exhaust and welded away.Another firiend years ago tried to make sure no vapors were in the tank after water was in.Boom went probally 30 feet up.years later his arm still hurt from getting smacked with it