Exactly. You want a re-sealer. They recondition all engine seals by using a polymer that does zero damage to the motor. Do they work? Yep. How do I know? Cause I use them. A re-sealer will look very much like water when you pour it out of the bottle. A "stop leak" will be more like a thick syrup. Here's the backstory. Again. lol
I purchased my rig with 232,000 miles. I got a great deal and one reason was it had a very slight rear main leak. My plan was to fix that. I first talked to a mechanic friend and to my surprise he recommended Blue Devil Rear Main Sealer. After my own research I decided to give it a try. I put it in at my 235,000 mile oil change. It worked.
Then I changed my oil at 240,000 and did not put re-sealer back in. Then the leak came back. I did more research and came across another re-sealer. This one is the ATP AT-205. I put a bottle in at about 241,000 miles. It stopped the leak in a day.
Since then I've put 9000 miles on my rig and done two oil changes. I add half a bottle(4oz) of ATP at every oil change. There is not a single drop of oil coming off my rear main. It also stopped the slight seep coming off my oil cooler.
The moral here? Don't knock something unless you've tried it.
I have turned a lot of wrenches over the years. I was one of the skeptics about stop leak products. That was years ago before re-sealers entered the market. My mechanic buddy who told me to try this stuff has been turning a wrench everyday for 30 years. I trust him more then any random guy on the net saying something does or doesn't work.
I did a lot of research into how a re-sealer actually works and I am convinced that they do work for certain leaks and that they do not cause any harm to the internals of a motor. But then again, I'm just some random guy on the internet. lol
