Red Line has released a new high performance coolant that has its famous, and universally used in motorsports, Water Wetter surfactant additive pre blended in. Red Line Supercool comes in two variants, one that is 50/50 pre blended and ready to use, and a concentrated version where you can control the ratio of coolant to water. This is useful in very cold climates or for cars that are stored where you might want a higher concentration of coolant to water.
Red Line Supercool fortified with Water Wetter is designed to maximize the performance of the cooling system with superior protection against cavitation and corrosion/erosion. Using the pre mixed SuperCool protects the entire cooling system. Keeping new components like new for 5 years/150,000 miles and prevents further damage to older components. Red Line’s proprietary Water Wetter coolant additive formula enhances the fluid’s ability to transfer heat. Red Line says its coolant can reduce operating temperatures by up to 20 ̊F and prolong the life of the entire cooling system.
Just how well does it work? Well, we decided to put it to the test. We chose a late model Toyota Tundra to do our testing, because we figured that a heavy duty vehicle like a Tundra would need to have good cooling for doing stuff like towing and hauling a lot of weight. Our test subject was a 2018 Toyota Tundra with a 5.7 liter V8 and 50,000 miles on the odometer. We will also be using this opportunity to test CSF’s high performance aluminum radiator for the Tundra.
Before we get into the results, let’s go over our testing procedures. We will be covering a number of tests in this article:
- OE coolant with OE radiator (cooling system baseline)
- Redline Supercool with OE radiator
- Redline Supercool with CSF aluminum radiator
Thermocouples were added to the coolant hoses going into and coming out of the radiator. This data along with ambient temperatures were logged with our trusty Omega RDXL4SD temperature datalogger. We controlled the ambient air temperature to within a few degrees during the entire test by opening and closing the dyno room doors, this was very effective. The dyno fan speed and position were kept constant during all tests.
We obtained a new set of Genuine Toyota radiator hoses and a couple of temperature sensor adaptors to tap into the coolant flow. One for the radiator inlet and one for the outlet. We used Omega K-type thermocouples.
Here’s a closer look at our radiator hose adaptors with thermocouples installed. The thermocouples are inserted so it they are about half way into the adaptors.