Water-based coolants need to be drained and replenished every 1 to 4 years, because the corrosion inhibitors breakdown* over time (*depletion by oxygen and galvanic activity). ![]() So, if you are considering an environmentally friendly coolant that improves and extends the life of your engine please read on. The high boiling point of Evans coolants are also facilitating improvements in engine design, performance and fuel economy.Įvans products are certified non-toxic and documented to last 20 years without need for replacement or top-up. Over the last twenty years Evans waterless engine coolants have been tested and proven by OEM’s, fleet operators, racing teams, professional restorers, plant operators and automotive aficionados to increase reliability and reduce operating costs. Finally, in 1993, Jack formulated a synthetic coolant which eliminated corrosion, erosion, overheating, significantly reduced system pressure and maintained heat transfer equilibrium. Jack Evans, a cooling system designer, also struggled for many years with waters limitations and was determined to find a better solution. ![]() Whilst internal damage goes mostly unnoticed in new engines, the cumulative effects of corrosion, cavitation and cyclic pressurisation become increasingly apparent over time.įor decades engine designers and antifreeze formulators have persisted with water whilst endeavouring to overcome its intrinsic shortcomings - primarily because there has been no viable alternative. Statistics published by manufacturers and motoring organisations confirm, that water is the root cause for 60% of engine breakdowns and 40% of catastrophic failures. Water - great for drinking but not ideal for engine coolingįirst used in engines some 100 years ago, water-based coolants are universally acknowledged to have inherent physical and chemical limitations that effect long-term reliability, increase maintenance costs and often restrict engine performance.
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