How do I install Evans waterless coolant in my vehicle?

It is important to thoroughly remove all of the old coolant before installing Evans waterless coolant. See our installation information for complete instructions.

Do I really need to use Prep Fluid?

Evans recommends using Prep Fluid for all installations to ensure removal of all remaining water-based coolant from the cooling system before installing Evans waterless coolant. In a new or “dry” engine, it is not necessary to use Prep Fluid.

How will I measure water content after installation of Evans waterless coolant?

A refractometer is a device used to measure the final water content after conversion to Evans waterless coolant and uses a Brix scale. Refractometers are most commonly used by fleets or conversion facilities where installations are regularly performed. 

If you do not have a refractometer, we can test your coolant for you by sending us a small 100ml sample.

What happens if I have water in my cooling systems after installing Evans coolant?

It is important to closely follow directions during the initial Evans waterless coolant installation. A water content higher than 3% will lower the boiling point, and may reduce the corrosion and pump cavitation protection of Evans waterless coolant. If a water test shows there is higher than 4% water in the coolant, the corrective action is to drain some coolant for the system and add back new Evans waterless coolant. 

Do I need to change my radiator cap when using Evans coolant?

A different radiator/pressure cap is not required with Evans waterless coolant. A water-based coolant generally requires anywhere from a 7 to 15 psig pressure cap. Higher pressure raises the boiling point of water-based coolant. Evans waterless coolant expands slightly as it warms, creating pressure of 3–5 psig, and the existing cap does not need to be changed.