Rislone Hy-per Cool Super Coolant, 16 oz.

Great stuff. It works. It's definitely not snake oil. I have been using this stuff since 1990. I pour it in all my cars. It keeps the car running much cooler and quieter. It keeps the radiator from rusting out and in fact it protects the water pump. It's a lubricant and a protector. I highly recommend this.

Works exactly as described. Helps keep engine running cooler under heavy use

This stuff definitely works it cools my engine 50 degrees cooler I use it in my ford diesels n haying tractors

I put this in my 2000 Jeep XJ these are notorious for running HOT! This product dropped the temp by 4 or 5 degrees. Doesnt sound like much but it is a help. Worth it in my opinion.

I use this super coolant additive for both of my vehicles and it works as expected. I would use it again. Check with your manufacturer first to see if its compatible with your vehicles.

THIS REALLY WORKS, MY SONS OLD JEEP KEPT GETTING HOT, PUT THIS IN HIS ANTI FREEZE AND RUNS COOL ALL THE TIME NOW, THANK U! GREAT DEAL!

Works great

good product

Product was leaking

10

I can't say I notice a huge difference since using this product. My car wasn't overheating. I think this is a good preventative and good product to refresh older coolant. The corrosion inhibitors and surfactants can't hurt.

This stuff works. lowered the temp by 5 degrees and that can be critical on a hot day with a classic car.

I have no idea how to tell whether this type of product actually works and, if so, how can you tell? But I trust the science behind it and went with expert opinion in the end.