[mass A man]

30+ years ago I sealed a '27 Packard tank with the Bill Hirsch sealer, tested against the "new" alcohol being put in the gasoline. It was a thinner, whitish sealer compared to the older, non-alcohol type which he sold, it was a thicker, honey colored sealer. As far as I know, the Packard is still going well since I sold it. Have no rust in the Model A tank.