Mixing the two glycols in the water can result in erroneous freeze point readings on a refractometer or hydrometer. Ethylene glycol is perhaps the most common because it has better heat exchange properties than propylene glycol, which is less toxic. Glycol (ethylene or propylene glycol) is added to water to withstand freezing temperatures and to raise the boiling point so that the engine stays cool during operation. Because vehicles in many parts of the world can experience ambient temperatures well below ‘freezing’ during winter, and engine operating temperatures can reach well above water’s boiling point while in use, heat exchange and freeze protection are critical. Water is inexpensive and the most effective heat exchange medium, but has a relatively narrow temperature range from freeze point to boiling point. Cars and trucks with internal combustion engines burning gasoline, diesel and natural gas fuels use coolants. Liquid circulating around the engine absorbs heat created by combustion, then carries it away from the engine where it cools as it passes through a radiator. Automotive coolants are generally made of three key components: water, glycol and an additive or chemical inhibitor package. While a coolant can be made of a liquid, or other substance depending upon the application, let’s focus on those used in engines by the automotive industry, since they’re probably the most common – or at least the ones people are most familiar with. With this perception of complexity comes a laundry list of questions: “What’s the difference between a red coolant and a green coolant? What will happen if I mix the two? Is ethylene glycol the same as propylene glycol?” In this article we’ll try to answer these and other questions by breaking things down into bite-size chunks that are easy to understand.
But in a market of ever-increasing technologies, OEM requirements, and even colors, the products can seem quite complex. They provide freeze and boil protection and they prevent corrosion. Specialty Industrial Oils: Marine Oil and MoreĪ coolant, or “antifreeze”, as referred to by the vast majority of consumers, serves a couple of relatively simple purposes in automotive and industrial applications.Motor Oil and Synthetic Motor Oil for Cars.Please click here to view Delivery and Postage rates/options. Shipping to some postcodes in the Scottish Highlands and Islands is also an issue with courier, please contact us for further details if in doubt before ordering. This includes Northern Ireland and The British Isles. Please note: We cannot send this product overseas owing to the strict regulations governing the sending of pressure containers or containers housing liquid or fuels by Airmail. Meets the requirements of: MAN 324, Cummins ES 14603, Leyland, Fiat/Iveco, MTU, Perkins, John Deere.The product uses sophisticated silicate stabilisation technology to eliminate the potential for formation of silicate gel often observed with inferior products whilst other additives ensure good compatibility with hard water and prevent the formation of scale that can result from the use of hard water.ĭosage Information And Freezing Point Protection: The inhibitors include organic acids in combination with borate, silicate and nitrite which are well known for their ability to provide excellent protection in heavy duty applications, particularly when there is potential for cavitation erosion-corrosion to occur. It employs established inhibitor technology and is phosphate and amine free. Granville Sub-Zero Green is ethylene glycol based formulated for optimum performance in heavy duty diesel engine applications but equally suitable for light duty use. Granville 2602 Sub Zero Green Antifreeze & Summer Coolant 5 Ltr
0 kommentar(er)
