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.

Great product. I run two bottles of this Hyper Coolant Super Coolant and all water in my 78 GMC Caballero drag car. Keeps coolant temperatures down between runs. Also provides excellent corrosion protection so you can run all water without any antifreeze or coolant for track purposes. I also run this stuff in both of my Ram trucks and my C5 Vette. Works just as well as Water Wetter but much cheaper.

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

I've gotten this for a couple different cars now, on my first car was a 2005 chevy impala ss that was overheating I ended up flushing my coolant out putting in new and adding this and it ran way colder the next car I used it in was a 2006 subaru forester and it once again helped it run cooler although since I didnt flush the coolant that time it wasnt as big a difference, lastly I put it in 2005 scion xa and that one blew a radiator hose when it was overheating and so I had to top off the coolant and added this at the same time and once again it ran colder so in my experience this has worked

Works but. Didn`t notice any temp differences.

Excellent product that a great price

Worked Lowered temp about 20 degrees on my 74big block vette

Do not see any difference in my truck. I did a radiator anti-freeze exchange and added this to the radiator. Used the truck a few times. Once towing our trailer. I noticed the temperature gauge actually goes a bit more than half way up when pulling a long hill. Soon as I crest the hill, the temperature goes right back to the halfway point. In the past, the truck never went over half way.

Excellent product

Product was leaking

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

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.