Evans Prep Fluid is a waterless cooling system flush engineered specifically to purge the cooling system of water-based antifreeze after draining and before installing new waterless coolant. 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. Prep Fluid is NOT intended to be a stand-alone operating coolant, but as a flush only.

Engine Types

For use with all engines being converted to any Evans waterless coolant, after draining 50-50 coolant from the cooling system.

Usage

Evans Prep Fluid is ready to use—no water required.

• Hygroscopically absorbs water
• Ensures all residual water is removed from the system
• Ensures that Evans coolants will meet the water content limits and provide peak performance
• Protects cooling system metals during flush

View Technical Data Sheet

CONVERSION/INSTALLATION

The primary objective of installing Evans waterless coolant is to eliminate many problems associated with water in conventional water-based cooling systems, while increasing reliability and engine life.

The conversion from a water-based antifreeze to Evans is a straightforward process that can be undertaken by anyone with some basic experience in engine mechanics, provided the instructions are adhered to.

An important part of a good installation is using Evans Prep Fluid. Prep Fluid is specifically formulated to purge remaining water-based antifreeze from the system after initial drain. Since certain parts of the cooling system might not drain completely by gravity, installing a scavenging fluid is the most practical method of removing all of the water-based antifreeze. The Prep Fluid is not formulated to chemically clean the engine of rust and scale, but the process of circulation and draining will help remove any loose sediment.