atp automotiveAT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

I have to say that it is very rare I would ever use or recommend anything from the "snake oil" section of an auto parts storeThis AT-205 I had researched and felt as comfortable as one can be using any additive.I had purchased a 2006 Ford Explorer with a very minor leak at the rear main seal. I am sure starting with a very minor leak helped to.The vehicle literally looked brand new. It looked like the leather seats had never been used. There was not a single mark on the paint. The motor and transmission worked flawlessly. The only thing I intended to do is replace the plugs with high end Iridiums, the old ones were worn but nothing about their condition otherwise.Its a big job to replace the rear main seal so I decided to give this a try along with a high end oil and filter change then another after a short time to help remove some of the sludge.I added a bottle of this with the second oil change and obviously the seal swelled as intended and there was no more leak.I had a motor that had been well maintained and a very minor leak. Had the leak been worse I suspect this would not have worked as well, fix things fast before they get worse and more expensive.But I was fortunate and this additive was a legitimate product and did what it was designed to do.There is no question this worked in my case and saved me big money if I had needed to replace that sealIf your leak is minor then I have to recommend giving this a try. It is one of the rare items that actually worked as intended.I am very happy with the results.I have watched how spraying this on rubber suspension parts extends their life as they do dry out. Not a bad idea and perhaps save some big amounts of cash.

I got a 2001 Chevy truck 4x4 with the 4.3 Vortec. It leaks a little bit of oil. If you know, dropping the oil pan on a 4x4 gm is not the easiest job to do, so I decided to try at205 and see if it can do anything about the oil leak.The timing cover, the oil pan gasket, and the rear main seal is all seeping a little bit of oil. The whole oil pan is wet, but it’s not a big enough leak to ever drop on my driveway.I poured 2/3 of this bottle into my engine, because my engine takes 4.5 quarts of oil.I will drive the truck with at205 in the engine until I see an improvement, and I will post an update below.I bought three bottles of at205, because I will also use this product on all rubber parts on my truck, like the weatherstripping and bushings.Will update if I see an improvement with the oil leak.Edit:UPDATE at 3 days since I poured it in the engine:I went under my vehicle and washed off all the oil and dirt buildup two days ago after I poured in the at205 and did a quick 30 minute drive, on day 1.I went under the vehicle again today (day 3), and there still is a very little bit of oil coming out of the front main seal, but I do not see any oil from the rear main seal or the engine oil pan gasket. It is dry. The front main seal leaking is now very very minimal. Not even enough to coat the underside of the oil pan anymore. Super happy to see this.I will post an update again in a couple days. I will wash the underside of the engine again tomorrow, then post an update on day 6.

I recently bought a 1013 suburban with 300,000 miles on it. I knew the 5.3 liter engine had some oil leaks and I have been replacing gaskets one or two at a time. The big problem is with the rear main seal. It was leaking a lot! That’s a bear of job and I want to put it off as long as I can. So I read and heard good things about this stuff and I thought I would try it. What have I got to lose, right. At first I wasn’t too impressed, but as time went on and the mileage started going up, I noticed a big improvement in the oil leak at the rear main seal. It’s now been around 600 miles and the leak is down to a very small drop of oil on the bell housing and oil pan. And that little drop takes a few weeks to appear. I’m convinced, this stuff works!