Evans HDTC waterless coolant boils at 375° F.  In use, it features a huge separation between the operating temperature of the coolant and its boiling point.  HDTC can therefore control metal temperatures at coolant temperatures that are well above the boiling point of water.  With engine metals protected at higher coolant temperatures, fan turn-on temperatures can be safely increased.  Evans has found that raising the fan temperature to about 230° F decreases fan-on time over 50 percent.  Engine and truck builders often use giant radiators and amazingly powerful radiator fans for the sole purpose of keeping water-based coolants cold enough to remain functional.  Released from the burden of avoiding the boiling point of water, HDTC waterless coolant enables the safe use of higher coolant temperatures and sharply reduced fan usage.  Thousands of dollars in fuel savings annually result from that technique.

Evans NPG+ Waterless Coolant is the most popular of Evans Waterless Coolants, recommended coolant for all gasoline and diesel engines. NPG+ is a year round, lifetime coolant. No other cooling system modifications are required for stock vehicles to run NPG+. Simply drain the entire system and fill. NPG+is safe for stored vehicles and vehicles operated in extreme cold conditions. Motorcycles and small engines are suggested to use Prep Fluid as a flush prior to installing NPG+. NPG+ meets or exceeds both the ASTM D 1384 corrosion test and the ASTM D 3306-94 specifications.

Also known as Race Fluid, NPG-R is one of Evans newest waterless coolants. NPGR is designed for use with high performance vehicles, race cars, motorcycles, and other power sports vehicles.  It is Evans' best fluid for transferring intense heat from hot cylinder heads of high performance engines to radiators because of its better heat conductivity and lower viscosity, while providing a huge separation between the operating temperature of the coolant and its boiling point.  It can be used without any changes to the cap, the radiator, the pump, or any cooling system components.  For racing, it is recommended that NPG-R be replaced at the end of each racing season.  Evans NPG-R has a 5-year maximum life for other purposes.

Evans NPG is the Original Waterless Coolant. NPG is a lifetime coolant. NPG is recommended for racing engines that run on tracks or in series where there is a "NO Ethylene Glycol" rule, and can be used in high performance street vehicles with high flow cooling systems. NPG is NOT recommended for daily drivers or cold weather operation, and may require system modifications to ensure a successful conversion.

Evans Prep Fluid is a waterless cooling system flush designed to seek out remaining water after draining the cooling system of an engine. Prep Fluid should be used when block drains are unavailable or cannot be removed. It is not a substitute for thoroughly draining the cooling system and related components. A minimum of 1 gallon of Prep Fluid is recommended for all motorcycles converting to NPG+ or NPG. Prep Fluidis NOT intended to be a stand-alone operating coolant, but as a flush only.