🔒 Authentic GM Fluid 12378255 Cooling Seal Tablets - 4 Grams, Pack of 5: Genuine Quality for Your Cooling System! Review

My old 5.3 liter Tahoe started losing coolant. No external leaks. No traces of coolant in the oil. With 195,000 km on the clock I don't want to spend a lot of money on it. I chopped them up and mixed them with new coolant after draining the radiator. 6 months later and many kilometers later there is NO more loss of coolant.

Replaced the water pump on my Corvette 95 only to notice a small drip on the bottom of my radiator as the system was flushed and there was new coolant ( green) I tried 3 of them in the upper radiator hose, warmed up the car until the radiator fans started up at 227 degrees, running time 15 minutes, the next morning there was still a small drop of coolant on the floor, let it cool down for the night, the next day was the weather good, so drove at 25 minutes speed on the Autobahn, checked the…

I found on the forum that all 1999-2008 GM vehicles require coolant supplementation if I remember correctly. I've never seen or heard of it. I just completed a full overhaul and after replacing all parts of the cooling system I could smell coolant after the ride. I've pressure washed the engine bay several times but the smell kept coming back. I could smell it as I walked across the front of the car. That means there's still a leak somewhere. I added them because there are instructions on how…

This product works. This is a natural product and I highly recommend using this product. Application as described in the instructions. One package can be used for a full-size SUV with a 17.5 quart V8 engine. Flush the system before use. I suggest crushing it up and mixing it in a container with water for easier injection. Drive your car as usual. This allows the product to get into all those little spots where you might have a little leak. Recommend this to anyone scratching their head trying…