Hi,

That's a really good question and I'm glad you asked it S. You didn't mention the type or model of your car, that could be really important, so I've attempted to reference your model:

1974 144

Please understand that this helps all of us who would like to format a response.

First I'd like to say that fuel is dangerously unhealthy. Gasoline vapors will destroy the brain and cause headaches, nausea, and has been shown to cause cancer. Fuel vapor is not only damaging to the body, but damaging to the environment as well. Evaporative emissions contribute a large percentage to global warming. In review, knowingly operating a defective vehicle is not only irresponsible to yourself, but to others as well.

You also said that the fuel leak was expensive, and that you have purchased many products and pastes, but nothing has worked. S, I must say, with all the money you've spent on putties and pastes and dripping gasoline, a real technician would have gladly welded the tank. This brings me around to say, you might find a better paste or patch, but it'll be never as good as the pennies worth of metal it'll take to fix the crack.

Though time consuming, dropping the tank and taking it to the repair shop shouldn't be more difficult then applying those products, and once it's done you'll nare worry for a long time. For a car of this age, this sort of repair goes with the game. I expect such things out of my 1977, and it's not bragging or boasting, but understanding how things are.


Goatman