Has anyone heard of, and has anyone used AT 205? I did a lot of research and it appears to work really well. I added it to my engine for a slow leak but it will be a while before I know if it really helps. Anyway, just thought I would let you know about it. It seems to have gotten popular enough that the price has doubled recently. I did find it on Amazon for $20 but had to wait 30 days for it to be back in inventory.

 

If you are not planning on keeping the car long, it might be worth a shot; if you want the car long term, have the leaks fixed. Why? Such products cause gaskets to swell; in the long term such swelling can cause other issues.

Which engine do you have in your car?