Red Line 80204 WaterWetter Super Coolant - 12 Ounce (2 Pack)

This should be an automatic addition to every hot rod cooling system.

The first time I used this was at the race track. I put it in per the recommended dosage and it did everything the salesman said it would. That was in 1993 and I still use it in all my cars.

I’ve used this stuff for years and it definitely help coolants to stay cooler longer.

This stuff worked great on my classic car. Runs nice and cool now and no worries about overheating.

According to HP Tuners scanner, during highway cruising (not consistent, but as the coldest recorded coolant temperature; went down from 192 deg Fahrenheit to 190 deg Fahrenheit). Of course the 2 degrees of better cooling was only established after the water wetter. Mind you, I had factory thermostat, 09 SIERRA 2500HD 6 liter engine, 50/50 DEX-COOL premixed. Each car is different. So not so much of a change, but hey, it made a difference. That being said, I believe now it takes the engine a little more time to heat to operating temperature. This may be good or bad depending on your weather. I live in a very hot climate overseas which easily reaches 120+ Fahrenheit so anything helps. If you want better results, you can add drinking water and coolant. I don’t like to do that because drinking water contains minerals which may or may not harm the block. If you choose to do that, I advise you flush your coolant more often. Is it worth it? For me, I am happy even though it’s only 2 degrees difference, but in the Car World, every digit counts in my opinion especially that my test was accurate enough and represents real-world test. Good luck!

I have a 1984 Suburban with a mild performance built, 400hp to the crank, 1979 350 motor and 700r4 trans. I've don't drive it a lot but I've got about 500 miles on it over the last 1.5 years. I've noticed in the summer (North Florida) when I sit in traffic, that the temp seems to creep up about 215-220. I have a new stock-style water pump, a Flex-A-Light fan (properly sized and positioned in the fan shroud), a 192 degree t-stat, and proper 50-50 mix coolant. I drained the coolant, installed a 180 degree t-stat and fresh coolant with this Waterwetter. Seems to be working well. Hasn't got over 200 yet.

I believe in the science behind this product but TBH I didn’t notice any change in coolant temperature. I like the Redline name brand. I live in Florida and quite often get stuck in traffic so it gives me a bit of peace of mind that I’m not going to overheat.

Works great. Apologises to seller I made a mistake on sellers review.

Item is exactly what I ordered

Put two bottles in and works well, came on time.

Dropped the temperature of the V6 in my 1964 Sunbeam Alpine by 15-20°. Worked GREAT !!!

Good quality.

I have used this for years now in anything that has coolant. Awesome product. Great value and cooler running temperatures.