---
product_id: 2156324
title: "ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle"
brand: "atp automotive"
price: "€ 37.50"
currency: EUR
in_stock: true
reviews_count: 8
category: "Atp Automotive"
url: https://www.desertcart.pt/products/2156324-atp-automotive-at-205-re-seal-stops-leaks-8-ounce
store_origin: PT
region: Portugal
---

# Rejuvenates rubber seals & gaskets Fast-acting formula stops leaks quickly Compatible with synthetic & conventional oils ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

**Brand:** atp automotive
**Price:** € 37.50
**Availability:** ✅ In Stock

## Summary

> 🚗 Seal the deal on leaks before they seal your wallet!

## Quick Answers

- **What is this?** ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle by atp automotive
- **How much does it cost?** € 37.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/2156324-atp-automotive-at-205-re-seal-stops-leaks-8-ounce)

## Best For

- atp automotive enthusiasts

## Why This Product

- Trusted atp automotive brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Seal-Smart:** No petroleum distillates—won't swell or damage seals, ensuring engine health.
- • **Compact Yet Mighty:** 8oz bottle treats up to 6 quarts—perfect for a full engine refresh.
- • **Seal Rejuvenation Power:** Restores elasticity to dried-out rubber seals for long-lasting protection.
- • **Leak Stoppage in Minutes:** Professional strength formula seals leaks fast, saving costly repairs.
- • **Universal Fluid Compatibility:** Works seamlessly with ATF, gear oil, power steering, and hydraulic fluids.

## Overview

ATP Automotive AT-205 Re-Seal is a professional-grade, fast-acting additive designed to stop leaks by rejuvenating all rubber seals and gaskets in engines, transmissions, and hydraulic systems. Compatible with both synthetic and conventional oils, it safely restores seal elasticity without harmful petroleum distillates. One 8oz bottle treats up to 6 quarts of fluid, offering a cost-effective alternative to expensive repairs.

## Description

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.

Review: IT WORKS. AND IT WORKS GREAT. AS DESCRIBED - Okay, where do we begin. I bought my vehicle from a dealer who bought it from an insurance lot. Something has fallen onto the vehicle and crashed the hood and the surrounding areas. But the engine bay was untouched. The vehicle sat at the insurance lot for about 6 months without being started. Once the dealer purchased it he took it to a body shop where they fixed all the body panels the hood etc. Then when they try to sell the vehicle they had a hard time selling it because it was a six-speed manual transmission. So it's sad at the dealership for another 4 months. Now all this sitting and not running caused the rear main seal to dry out. After I purchased the vehicle about 3 months into driving a substantial leak happened at the rear main seal where I was losing about half a quart of oil a week. Took it to the dealership the estimate to fix it was around $3,800. Called a independent mechanic it was about 2800 to $3,000 to fix it. I just did not have that amount of money to throw at it. So I started searching online and stumbled upon AT205. Now before I purchased this product I did my due diligence did the research watched the video of the manufacturer. Educated myself and how is this product different from any other stop leak product. And where I was sold was that this product did not swell the seals but what it did was or what it does is it rejuvenates and restores the elasticity and the plasticity of the seals due to the plasticizers and plastic stabilizers that this product contains. So I bought it. The product arrived quickly, and as quickly as it did arrive I poured it into my engine. I mean what's the worst that can happen, it doesn't work right. I followed the instructions drove the car around for about 30 minutes to let everything mix in. And then it was time to drive and get about 5 hours of driving time. It took about 5 days of commuting back and forth to work to get those 5 hours in. After about 3 hours I noticed when I would stop at a parking spot for extended period of time and I would move my vehicle instead of having 10 drops of oil under the engine I would have three or four. After about 5 to 7 hours of driving The only oil left was the residual oil on the bottom of the engine that I have not wiped off yet because a car is too low to the ground. It's been about 2 weeks now and I have zero drips of oil under my car. Fresh oil that is. At my house in the driveway I still do have the oil spots from the leak that were there before I use this product. As of now there are dried out and everyday I check for new spots and I see any. I'm highly satisfied with this product and what it has done thus far. How is it going to work in the future I don't know. Will the oil leak come back with my next oil change not sure. But what I do know as of right now there's no leak. I'm thinking about buying another bottle and add it with my next oil change just to be sure that those seals get the love that they need to be able to seal the engine properly for a long time to come. One thing I'm going to do is, I will update this review a year from today. If you have a car that has a front main or rear main seal leak or any other leak when your engine try this product out it might just save you hundreds of dollars that you may or may not have. Yes I highly recommend this product to anybody that has a engine leak.
Review: Actually worked on a minor seal leak. - 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 store This 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 too. 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 seal If 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.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000NVW1LM |
| Best Sellers Rank | #909 in Automotive ( See Top 100 in Automotive ) #11 in Oil & Fluid Additives |
| Brand | atp automotive |
| Color | One Color |
| Date First Available | July 7, 2004 |
| Global Trade Identification Number | 00740993034162 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 1.76 ounces |
| Item dimensions L x W x H | 7 x 4.5 x 4 inches |
| Item model number | AT-205 |
| Manufacturer | ATP |
| Material | Rubber |
| Number of Items | 1 |
| Product Dimensions | 7 x 4.5 x 4 inches |
| Style | Compact |
| UPC | 740993034162 |
| Unit Count | 236 Milliliters |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** atp automotive
- **Item Weight:** 50 Grams
- **Item dimensions L x W x H:** 7 x 4.5 x 4 inches
- **Material:** Rubber
- **Style:** Compact

## Images

![ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle - Image 1](https://m.media-amazon.com/images/I/7197v30JruL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Do I just dump the whole bottle in?**
A: 8oz bottle will treat a 6 quart capacity, adjust accordingly

**Q: Will this work in Chevy 4L60E transmissions**
A: I was reluctant to put it in my 4L60E, but I did when the leak got pretty bad and I didn't have time to fix it. I only put in 1 bottle when the instructions called for 2, but oh my goodness what a result. Stopped the leak completely in under a half hour. I was blown away... blown away. Thought it was snake oil, turns out this stuff is legit. Then as if that weren't enough... the darn transmission started shifting more crisply... tooootally unexpected side benefit. It has lasted almost exactly a year and now the leak is slowly starting to come back. I have no reservations about treating it again. Since it can't over-swell the seals, this time I'll be adding the recommended 2 bottles. This product is a rare diamond in the rough of snake oil products. So to answer your question, yes, apparently it does work in 4L60E transmissions.

**Q: So basically I just put this where I would put the oil and it should stop the leak? Thanks**
A: I have used it on an Audi A6 2014 with supercharged 3.0T 109K miles. There was a really small leak that I could not figure out where it came from (back side of engine, it was not the timing chain covers, maybe the oil filter housing). Anyway, after putting this and driving about 300 miles later it seemed to stop the leak for a few months. Later sold the car for other reasons but I am happy with what this did. It rejuvenated the seals.

**Q: Is it necessary to drive the 5 hours at once, or does this refer to intermittent driving?  Thanks!**
A: It can be intermittent, Just need a total of about 5 hours, made up of multiple outings.  Best to start vehicle (and run at least a few minutes) as soon as possible after adding AT-205 so that it is evenly mixed with the oil.

## Customer Reviews

### ⭐⭐⭐⭐⭐ IT WORKS. AND IT WORKS GREAT. AS DESCRIBED
*by M***S on September 3, 2025*

Okay, where do we begin. I bought my vehicle from a dealer who bought it from an insurance lot. Something has fallen onto the vehicle and crashed the hood and the surrounding areas. But the engine bay was untouched. The vehicle sat at the insurance lot for about 6 months without being started. Once the dealer purchased it he took it to a body shop where they fixed all the body panels the hood etc. Then when they try to sell the vehicle they had a hard time selling it because it was a six-speed manual transmission. So it's sad at the dealership for another 4 months. Now all this sitting and not running caused the rear main seal to dry out. After I purchased the vehicle about 3 months into driving a substantial leak happened at the rear main seal where I was losing about half a quart of oil a week. Took it to the dealership the estimate to fix it was around $3,800. Called a independent mechanic it was about 2800 to $3,000 to fix it. I just did not have that amount of money to throw at it. So I started searching online and stumbled upon AT205. Now before I purchased this product I did my due diligence did the research watched the video of the manufacturer. Educated myself and how is this product different from any other stop leak product. And where I was sold was that this product did not swell the seals but what it did was or what it does is it rejuvenates and restores the elasticity and the plasticity of the seals due to the plasticizers and plastic stabilizers that this product contains. So I bought it. The product arrived quickly, and as quickly as it did arrive I poured it into my engine. I mean what's the worst that can happen, it doesn't work right. I followed the instructions drove the car around for about 30 minutes to let everything mix in. And then it was time to drive and get about 5 hours of driving time. It took about 5 days of commuting back and forth to work to get those 5 hours in. After about 3 hours I noticed when I would stop at a parking spot for extended period of time and I would move my vehicle instead of having 10 drops of oil under the engine I would have three or four. After about 5 to 7 hours of driving The only oil left was the residual oil on the bottom of the engine that I have not wiped off yet because a car is too low to the ground. It's been about 2 weeks now and I have zero drips of oil under my car. Fresh oil that is. At my house in the driveway I still do have the oil spots from the leak that were there before I use this product. As of now there are dried out and everyday I check for new spots and I see any. I'm highly satisfied with this product and what it has done thus far. How is it going to work in the future I don't know. Will the oil leak come back with my next oil change not sure. But what I do know as of right now there's no leak. I'm thinking about buying another bottle and add it with my next oil change just to be sure that those seals get the love that they need to be able to seal the engine properly for a long time to come. One thing I'm going to do is, I will update this review a year from today. If you have a car that has a front main or rear main seal leak or any other leak when your engine try this product out it might just save you hundreds of dollars that you may or may not have. Yes I highly recommend this product to anybody that has a engine leak.

### ⭐⭐⭐⭐⭐ Actually worked on a minor seal leak.
*by T***E on June 18, 2025*

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 store This 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 too. 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 seal If 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.

### ⭐⭐⭐⭐⭐ Good's greatest enemy...Perfect!
*by M***A on February 14, 2026*

I have a fairly mint 2006 BMW 530. I've spent the last year or so trying to restore it to top performance and fuel economy by refreshing the fuel system and sealing any and every last gap. I replaced all the related consumable parts like the oil fill cap (the gasket was super flat), the gas cap, manifold gaskets, fuel filter, O2 sensors, plugs etc. The changes were noticeable at every step. But when I was sure I was finally done, I checked the long term fuel trims and did a smoke test. And wouldn't you know the LTFTs were at like 15% and smoke was coming out of the valve head cover on all sides. I replaced the valve cover gasket maybe 3 years ago figured it was good, but just dry-shrunk. So this seemed like the perfect time to try AT-205 having heard rave reviews about it. I added about 1 oz for every quart of fuel and immediately ran out for a few errands to give it a chance to mix well. It was that easy. And wouldn't you know its just 3 days later and the LTFTs are now steady between 0-2% and I'm not seeing any smoke even when I crank my machine up to 25psi. You can (not) hear and feel it in the idle of the car too. You have to be standing right next to it to even hear that its running or check the dash if your in the car. ATP was the magic sauce that got me to a perfectly sealed, optimally efficient drive. I CAN believe that such a simple product can deliver such measurable results so easily, because literally everybody who knows says so. But its still amazing to realize the results for yourself. If you even think you have dry rubber or leaky gaskets, it seems like it will pay for itself in fuel economy alone in short order. Don't even hesitate. This stuff is liquid gold.

## Frequently Bought Together

- ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
- ATS Chemical 505 CRF Fuel System Treatment, 16 fluid ounces
- ATS Chemical 505 CRO Oil System Treatment (505 CRO Oil System Treatment 12 FL OZ)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/2156324-atp-automotive-at-205-re-seal-stops-leaks-8-ounce](https://www.desertcart.pt/products/2156324-atp-automotive-at-205-re-seal-stops-leaks-8-ounce)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-16*