![]() After several years of trying OAT based products many HDDE OEMs and fleet operators reverted to nitrite and/or Hybrid OAT (HOAT) formulations. Evans Waterless Coolant is a glycol-based fluid that contains no water, so it eliminates many of the problems of water-based cooling systems. OAT formulations are often branded as ‘Long-Life’ based on their five year life-span, compared with 1-2 years for standard antifreeze formulations.Īlthough OAT-EG-Water mixtures are now used in most new car engines, they have proven less successful in older vehicles and heavy duty diesel engines (HDDE). About Waterless Coolant Traditional engine coolant is 50 water, but water causes engine corrosion and overheating. Nitrite, silicate, borate and azole based products have been around for many years, with Organic Acid Technology (OAT) inhibitors appearing more recently. This promotes galvanic corrosion where metals of high nobility sacrifice themselves to metals of lower nobility – this is often manifested by pitting.Ĭorrosion inhibitor formulations have changed many times over the years, but not always for the better. Water also acts as an electrolyte if dissolved solids, such as hardness salts (lime scale) etc., are present. Evans Prep Fluid is a waterless cooling system flush engineered specifically to purge the cooling system of water-based antifreeze after draining and before. This cycle leads to a perpetual cycle of corrosion, which is accentuated in classic vehicles with no expansion chamber. Water when heated drives off a significant proportion of dissolved oxygen, but as it cools reabsorbs fresh oxygen. Triumph Daytona 675 / Street Triple 675Īlthough water is cheap and readily available, it is also the root cause of corrosion within engine cooling systems.Jofama 2019 Range of Motorcycle Clothing Clearance Evans Power Cool 180 - Waterless Engine Coolant for Performance Cars For use with all high performance engines fabricated from a mixture of cast iron. ![]() Lindstrands Range of Motorcycle Clothing.Halvarssons Range of Motorcycle Clothing.Bonamici Chain Adjusters, Paddock stands and Bobbins.EVR Overbore Kit for Ducati 748 to 853cc.Introducing the new Weather Protector Seat cover. ![]()
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