ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle (2 Pack)

WOW! This product actually works. I have a small rear main seal leak in a 250,000 mile Chevy 5.3 where I would have 3-4 drips hanging from the bell housing, starter bolt and oil filter. Put dye in oil to confirm it was a rear main seal leak. I put in one bottle of AT-205 and drove it around for about 75 miles over 5 days. Just checked and no more drips. Don't know if it will work for larger leaks but for my small drips.... it works.

I have used this on a half dozen vehicles with mixed results. On a Cherokee power steering pump leak, it cured it. 100%. No more leak while I owned the car. On a very bad front main seal leak (Ford 351) it slowed the leak a LOT, enough that I could live with it like that for a couple of years, then had to replace the water pump which required replacing the seal anyway. I've also had it do nothing at all for a transmission leak, and work decently on a different transmission. Worked well on a steering rack, too. I think the variation is probably due to the seal material and the reason for the leak. If you have mechanical damage to the seal or to the sealing surface, this is NOT going to help. It works by rejuvenating the seal, not by plugging holes wit a filler of some kind. This makes it safe for transmissions. It won't clog passages. I have not had ANY problems from using it. It's well worth giving it a try!

Honestly this stuff exceeded my expectations. I had a pretty significant power steering leak in my 2008 Toyota Avalon and I assumed it was gonna require me replacing all my power steering lines. I put some of this in and it has almost completely stopped the leak. I haven’t had to top off my power steering fluid since I put it in 2 months ago! Would definitely recommend this. Keeping in mind that this won’t fit broken or torn seals. I plan on using this again for other leaks I have on my vehicle

I've used AT 205 on my 2007 Honda Odyssey & it has effectively stopped oil leaks. I initially used it to stop a leak from the spool valve. It worked until I replaced the spool valve. I later developed a leak from the rear main seal & now use AT 205 to control that, as replacing the rear main seal requires pulling the drivetrain & then having an alignment done after its back together. Around town there is no leak at all from rear main seal if I use AT205 at every oil change. If I get up to high RPM's on freeway, it will still leak a little due to the increased crankcase pressure, but not nearly as bad as without AT205.

Good product. Excellent price.

Bought this to help condition and rejuvenate rubber seals and stop a potential leak. Works well and is easy to apply. Handy to keep around for basic automotive maintenance.

Engine was burning oil couldn’t find a leak so tried this and it seems to have stopped the burn.

This product really impressed me. I originally bought ATP Automotive AT-205 Re-Seal to fix a small oil leak and it did exactly what it was supposed to do. After seeing those results, I decided to try it on a power steering leak as well, and it worked just as effectively. It’s truly multiuse and saved me from having to make costly repairs right away. Easy to use, fast acting, and reliable. If you’re dealing with minor leaks and want a simple solution that actually works, this is definitely worth keeping on hand.