Victorian-based Evans Coolants Australia/New Zealand has introduced a waterless coolant to the Australian market
By Matt Wood | June 24, 2013
Victorian-based Evans Coolants Australia/New Zealand has introduced a waterless coolant into the Australian market.
The company says its waterless coolant has a significantly higher boiling point than water-based coolants, meaning thermostat and fan engagement temperatures can be raised.
The product has been available in the US for 23 years now and testing in American heavy vehicle fleets has seen fuel economy gains of between 3-5.5 percent, mainly due to reduced engine fan run times in trucks fitted with exhaust gas recirculation (EGR) engines.
According to figures provided by Evans, the lack of water in the cooling system means there is no water vapour created when the engine starts to overheat, which can create high pressure throughout the system as the vapour turns to steam.
Pockets of vapour can cause hot spots in cylinder heads and EGR coolers and can result in expensive engine repairs and downtime.
The interesting thing about the Evans coolant is it only needs to be installed once and should not need topping up at all. The lack of pressure in the system means there is reduced stress on hoses and hose clamps as well.
And the lack of water also means that there’s no potential for corrosion or electrolysis in the cooling system. The first truck ever converted to this coolant, a 1990 Freightliner FLB, now has over 1.6 million km on the clock and is still running on the same batch of coolant that was installed in 1990, trouble free.
The coolant is available in formulations for automotive and heavy duty use and has already seen some take-up among classic car enthusiasts.
I caught up with Evans’s John Mallia recently for a closer look at the product. Keep an eye out for more in an upcoming issue of ATN or Owner//Driver.
