Red Line WaterWetter is designed to provide improved metal wetting and excellent corrosion inhibition when added to plain water or a glycol coolant. For the mechanically challenged, installation of WaterWetter® could not be easier. Assuming you can open your hood, open your hood (when it is cold, otherwise prepare for a scalding). Locate the radiator fluid intake point (RTFM if necessary). If you have too much fluid in the overflow tank (above the line labeled max), simply siphon off 12 ounces before installing, as overfilling is a really bad idea. Open the radiator cap (or on most modern cars, the overflow tank) and pour in the full bottle of WaterWetter®, funnel optional. Now as to the claims of water wetter. To me, a DROP in coolant temperature (all other things being equal) would be LESS heat transferred to the cooling system, unless a coolant of far greater specific heats was being used. Not knowing the make-up of water wetter, I can't say whether it does increase the specific heat markedly. Water Wetter does work. I 've used it in a number of older cars, including several Jaguar XKE's I've owned, and it definitely reduces operating temperature.

The other use is in our race cars. I have been building and racing since the seventies....and I have used water wetter in all our cars since its introduction. Similar reduction in temps. Part of the concern is that glycol-based coolants are banned and water-only is the rule. The result is a reduced heat dissipation capability of our cooling systems. Red Line water wetter has worked great...the best value is honestly the corrosion inhibitors in the product; you don't get that in a rinse agent. I build Jaguar race engines. On a 3.8L with a steel shim head gasket, you will see significant corrosion in less than a month with just water. With water wetter, there is no appreciable corrosion evident in a couple of years use... Reduces or eliminates bubbles or vapor barrier that form on hot metal surfaces to reduce coolant temperatures by up to 20° https://cdn.opieoils.co.uk/images/variants/large/redline/red-line-waterwetter-super-coolant-additive-355ml-bottle-5.jpg As we know, most of the time engines deal with various types of temperature. Be it hot or cold. You can’t operate your car or other vehicles in the same for different temperatures. https://cdn.opieoils.co.uk/images/variants/icon/redline/red-line-waterwetter-super-coolant-additive-355ml-bottle-4.jpgRed Line WaterWetter will provide the proper corrosion inhibition for all common cooling system metals, including aluminum, cast iron, steel, copper, brass, and lead. Water has twice the heat transfer capability when compared to 50% glycol Antifreeze / Coolant in water. Most passenger automobiles have a cooling system designed to reject sufficient heat under normal operating conditions using a 50/50 glycol solution in water. However, in racing applications, the use of water and WaterWetter will enable the use of smaller radiator systems, which means less frontal drag, and it will also reduce cylinder head temperatures, even when compared to water alone, which means more spark advance may be used to improve engine torque. Type Dilution: https://cdn.opieoils.co.uk/images/variants/icon/redline/red-line-waterwetter-super-coolant-additive-355ml-bottle-3.jpg

using water wetter with a cooling system that is functioning properly and the engine doesnt overheat, will not help one single bit.Before I reveal the results of my test, let’s look at Redline's claims for WaterWetter®'s effects on your cooling system: