ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
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- Professional strength fast acting resealer, stops leaks fast
- Rejuivinates all rubber seals & gaskets in engines, transmissions, power steering, differentials and hydraulic systems
- Compatible with conventional and synthetic oils, ATF, gear oil, power steering fluids and hydraulic oil
- Does not contain petroleum distillates, will not over-swell or breakdown seals
- 8oz bottle will treat a 6 quart capacity, adjust accordingly
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AT-205 Re-Seal is a fast, effective and safe stop-leak for all rubber seals and gaskets. The exclusive formulation restores worn or dried out seals and is not harmful to internal bearings and components.
From the manufacturer
AT-205 Re-Seal - How it works
AT-205 added to leaking system
AT-205 Re-Seal is added to any leaking engine, transmission, power steering system, differential or hydraulic system (except for brakes) to condition rubber seals/gaskets and stop leaks. Simply pour it in as you would be filling it with oil or fluid.
The formulation blends with the oil
The additive blends with oil in the system and is circulated throughout during operation, treating and conditioning rubber seals and gaskets.
Conditions and rejuvenates seals
AT-205 is a plasticizer, a type of chemical used in rubber manufacturing to set hardness and flexibility. As a seal or gasket gets older it can dry out, harden and wear - treating it with AT-205 will rejuvenate it, restoring it's flexibility and sealing properties.
Most leaks resealed within 5 hours
As long as the seal or gasket is not severely damaged or torn, the leak is resealed after a total of 5 hours of driving - saving time and money from costly repairs.
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The engine had a leak from the rear main and the top rocker cover gasket. It stopped the top gasket leak but the rear main I think is too far gone for this to be of any help.
The transmisson was starting to show weeping from the rubber oil cooler hoses where they crimped to the steel line, AT-205 seems to have stopped the weeping.
The front suspension was getting really squeaky, so following the Scotty Kilmer vid, I sprayed this on all of the rubber bushings I could find and left overnight, and hey presto the bushings absorbed it and are now squeak free.
For the money, it's well worth a try on cars of low value to try to stretch a few thousand more miles out of them
Again I slowed the leak down by using the SuperCheapAuto product as it was easily available from my local store. In the next oil change very soon I will use AT-205 instead of being lazy and putting up with the SCAuto product. I ordered 5 bottles so this will last many years with our 2 old vehicles. This truely is an amazing product. It is not an instant fix, but get better with driving and at 500klms since the oil change, your leak will be considerably reduced or stopped. Both mine stopped...I’m sure it will even stop this larger leak on my most recent old Mercedes purchase.
I might just use it as a rubber preserver in future.
I was hoping for more as I imported the product from the USA as it wasn't available over the counter in Australia.
We live and learn.
for 6 hrs. Still have the same amount of oil leaking.
Top international reviews
I bought and used this product in May 2013 in my 2000 Toyota Camry. I was having an issue with a cloud of blue-white smoke every time I started the car, regardless of temperature. My assumption was the valve stem seals had degraded over time. There was no way I was going to drop that kind of repair money on a 13-year-old car, so I figured under $10 for an additive was a reasonable gamble. Ordered it from Amazon and it was in the mailbox a few days later when I cam home from work. Being tired and hungry, I decided to pop the hood and dump it in the crankcase. I figured it would mix in fine on the drive to work the next day. Indeed it did, and the smoke went away. Bingo! Ten dollar fix worked!
Three weeks later I was headed to the grocery store on my way home from work and the oil light comes on. Not an intermittent light like when the oil is really low but full-time on. Normally for such an event I would have it towed to a repair shop to avoid any damage to the engine, but I chose to complete my trip and gently drive home (about 5 miles). I started driving my truck to work while I put my best shade-tree mechanic skills to work, changing the oil pressure sending unit and other minor checks I found on Google. No joy, so I had it towed to my local non-dealer Toyota repair shop for a diagnostic. It truly had zero oil pressure, so they dropped the oil pan to check the pump. It turns out the pickup screen was COMPLETELY clogged with paint from the inner lining of the oil pan! (Minor rant to Toyota: what on earth possessed you to put paint on an engine part? Every other oil pan I have ever seen is bare or zinc-plated.) Six hundred dollars later I was back in running order, although they could not guarantee there wasn't some bearing damage.
Seeing as how Re-Seal is designed to react with rubber seals and paint shares some chemical characteristics with rubber I am assuming that it reacted with the paint in the oil pan enough to loosen it. This would not have occurred had I not just dumped the Re-Seal in and let it sit without running the engine a while. I take most of the blame on myself for not following the directions to the letter, with a slice of blame (or is that shame) for Toyota and their careless product design.
I saw this product as a Lightning Deal today, which reminded me to leave this review. Note that it is January 2017 and the smoke problem has not returned in the almost 3 years since I used the Re-Seal in my car. As long as you follow the directions implicitly I would recommend this product, at least in the motor oil (I have no other experience with it other than that). If my 1996 Toyota Tacoma developed a similar issue I would not hesitate to buy this product again.
I screwed myself by adding extra Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart, I didn't pay attention to the oil level since the Lucas is thick, the oil level looks fine when I filled it in but the next day, I noticed the oil level already exceed the max a little bit when I re-check the leve.
it makes my leak even worse possibly the higher oil level caused higher pressure in the engine.
I bought the ATP second time after oil changed couple of weeks ago, leak start reduced, but not completely stopped. may be the vehicle is too old.
ATP works for rear main seal leak. may not be perfect, but, it is partially working for mine
Again, the leak was minor. I didn't have any drop on the ground except that the differential was wet on the lower half. If your problem is like mine, I highly recommend using this. Try to follow dozing ratio. bottle of 236 ml says it can treat 5.6 liters. So for 700ml of differential fluid, I added 30ml.
The AT-250 really slowed the leaks in both areas.
Two weeks later I bought 3 more bottles on Amazon, changed the oil in the engine,and included a FULL bottle of AT-250 this time. So far, the oil leak at the rear main seal seems to have completely stopped.
'63 Corvettes are supposed to leak a little oil aren't they?.......well maybe not this one !
I think success for this product depends on how badly your seal is leaking. A slow leak shouldn't be a problem but there is probably a limit on how much the rubber seal will swell and stop badly leaking oil leaks.