or should i just leave the car as is?

hey dude, um. theres all kinds of threads for you to talk about that.

and why would you want one for?

too look cool? ahhaROFL

you know it! and hay i always look cool in my z. only joking but not really.

I used it to seal a fist size hole in the side of an 84 Volvo 240T Block. Lasted for over four years.

Great stuff.

Incidentally, I was introduced to it by a Marine Machinist, who used it for fixing key ways on heavy diesel crankshafts. His comment was that it was tough enough to machine.

I have used this product with mixed results. I don't think it is the correct substance to use in place of good old welding. For small repairs that are not affected by the elements freezing and heating and vica versa I am sure it works fine but in the end I think it will eventually fail. As a matter of fact every time I have used automotively it failed pretty rapidly.

McKrack

I agree that it's not the stuff to use in place of real welding. And if so, only in an emergency as a stop-gap measure. But for those things that cannot be welded, it's been giving me consistently good results, and very few failures.

I As a matter of fact every time I have used automotively it failed pretty rapidly.

Did you prepare the surface correctly? It needs to be degreased and sanded to adhere well.

I mainly use JB weld to fill gaps and make fillets on the model boat engines, and occasionally on anything else like you would with epoxy. I will use it only on rare occasions to join parts. I have also used the aluminum soldering rods (http://durafix.com) for repairs and fills with success, but mostly on the model boat engines, and the occasional soda can.