AlumAseal ASD24/2 Radiator Stop Leak Powder Tube Dispenser - 20 g

Ram 3500 with Cummins diesel

Have used this product in the past with very good results, highly recommend, Shipment was very fast. Very pleased with everything.Ron

awesome stuff best on the market today

I put the stop leak product in and followed the directions as stated on the back on the tube. Then I still saw the same leak from my radiator! The reviews looked promising and cheaper than a new radiator, but I guess a new radiator is the now the only option!

Works great just like always, been using it for over 30 years,

Had a Tiny leak leaving a small puddle in either my Radiator or Core I guess. Poured this in, ran the car with the heat on as instructed. Leak stopped dead. Checked it a week later...not a drop. Heard from People it could muck up my water Pump etc. so I went back to the Auto Parts store I bought it & asked if I should replace my fluid to get the excess out of there, looked on line too & no need. It's not like the old snot like stuff that was just a quick fix. Safe to use, worked fast, done. Very satisfied.

I used this on a 2000 Ford Expedition. I was getting a strong coolant smell after traveling less than a mile. As a temporary alternative to replacing the heater coil, he recommended Silver Seal. Unable to find that product at my local store I got Alumaseal, because it did have the word "seal" in it. As per my mechanics instructions, I ran my vehicle first to get the coolant warm. My "radiator" cap is on top on my reservoir so I can safely remove it while it is hot or the engine is running. I added a container of this stuff and drove it around for 40 minutes with the heater going. It had apparently worked fairly well, but I was still getting an occasional whiff of coolant so I added a second batch, which the manufacturer says may be necessary.I don't smell the coolant any more and my level seems to stay the same. My mechanic claims it should last until I start using the heater. By then I can decide if I want to spend the $600 to repair the vehicle or trade it in. The sealant worked as I expected, but it is a band-aid and not a cure-all.

This radiator only lasted two years and then began leaking a lot. I had a mechanic replace it with another. What a disappointment.