AT-205 Re-seal

[Satter]

I regularly watch Scotty Kilmer and ChrisFix on YouTube. More than a few times they’ve mentioned using AT-205 Re-seal to rejuvenate old rubber seals. Currently my 4Runner has no leaks. But, it’s 23 years old. Should I use the re-sealer anyway? Would it hurt anything if I did?

 

[MStudt]

I'm personally a fan of Blue Devil products. I've used a couple on other vehicles with success, but not on my 4runner.

Mike

 

[Satter]

I'm personally a fan of Blue Devil products. I've used a couple on other vehicles with success, but not on my 4runner.

Mike

Were your vehicles leaking when you used the products?

 

[MStudt]

Were your vehicles leaking when you used the products?

Yes they were. I most recently used it on a Subaru that was leaking oil from behind the timing chain. It took a couple days of driving for it to work since I didn't drive it much at all, but it did stop the leak.

Mike

 

[MN4runnerman]

I used the At205 to stop a leak on a rear main seal on my jeep. It worked great. If I have to pull the tired 4.2l out then a v8 is going in. It just bought me a couple more years

 

[nissanh]

If it's not leaking, why do you want to use additives?
Age is not the problem with the engine. Years are for humans and geology. An engine.... no!