He says the shared system is more efficient and cost-effective. Underground pipes run through the whole community, with connections to each house - kind of like a municipal water system. At a new development near Austin called Whisper Valley, his team installed a community-wide geothermal system that provides heating and cooling to more than 400 homes. They can be expensive and are typically installed one house at a time.īut Wolfson’s company is taking a different approach. He says geothermal systems have been around for a long time. “You’re able to draw on that constant thermal resource that’s just below your feet … to either pull the heat out of the earth when it is cold or, when it’s hot, to be able to sink the heat from buildings into the earth using a heat pump,” says Greg Wolfson of the company EcoSmart Solution. Geothermal heating and cooling systems make use of that constant temperature. But just a little way underground, it’s in the low seventies, year-round. Race tracks prohibit Evans products because they are flammable and slippery when spilled.Summers in Austin, Texas, are scorching. Viscosity is 3-4 times higher than what OEM water pumps are rated to accommodate.Ĭoolant flow rate through radiator tubes is reduced by 20-25% due to the higher viscosity. Specific heat capacity of Evans waterless products ranges from 0.64 to 0.68, or about half that of water.Įngine octane requirement is increased by 5-7 numbers.Ĭomputerized ignition must retard engine timing by 8-10o to prevent trace knock.Īccelerated recession of non-hardened valve seats in older engines is possible, due to brinelling. Reprogramming ECU fan temp settings is mandatory to prevent the fan from running continuously. Stabilized coolant temps are increased by 31-48oF, versus straight water with No-Rosion. Inhibitor deposition occurs on aluminum surfaces, which could cause issues in some radiators.Įngines run 115-140oF hotter (at the cylinder heads) with Evans products. 'Cause it will still cost you, when you have to switch to premium gas, and you lose horsepower, adding insult to injury.Ĭonversion costs of $259 if you do it yourself, or over $400 if you pay a shop to do it.ĩ7%+ removal of all previous coolant is mandatory in order to prevent corrosion. I'll just carry on using the long life coolant. It should never be disposed of directly into watercourses, drainage systems that are untreated or septic tanks.īottom line is that it won't fix a bad cooling system and it is down to the individual to weigh up the cost/ benefit ratio.
There seems to be little information of the correct way but it would seem that flushing down the toilet (but see below) is OK for small quantities. The main issue would be disposal and there could be issues there particularly if drains are used. I am not aware of high cat or dog mortality where I live due to them licking up spilled coolant. No argument with that feature but we should keep the problem in perspective.The introduction of Oxygen will be minimal (I would have thought) as ours is a semi-sealed system.However with the recommended 50/ 50 fill I haven't had any issues. I did see erosion similar to that in the video. The only time that I have experienced issues has been when I ran a motor with little or no inhibitor.You would not get any warning, such as coolant coming from the overflow, should the coolant temperature significantly exceed the design parameter.The BP of the coolant is irrelevant provided the temperature remains below this. The thermostat is designed to keep a motor at the correct running temperature.An advantage if one habitually wants/ needs to remove the radiator pressure cap on a hot engine but for most of us no benefit.IMHO the other argument are less persuasive: In the UK that would need to be some 17 -18 years (if you also use the Evans prep fluid) before you would break even. I guess this could make sense if you intended to keep a vehicle for a long time.
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