[Synchro909]

I have 4 Model As and every one of them has had the tank sealed. I drive several thousand miles a year and have never had an issue with it. I did have trouble once with a tank I hadn't yet gotten around to sealing shed very fine rust "dust" as fine as talc. It plugged up the filter. Now that I have cleaned out the tank and sealed it, I have no second thoughts about setting out on a trip of several hundred miles
If you use a good quality sealer and follow the instructions, you will be better than good.