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  2. Coolant - Wikipedia

    en.wikipedia.org/wiki/Coolant

    The lowest temperatures, used for the most powerful superconducting magnets, are reached using liquid helium. Liquid hydrogen at -250 to -265 °C can also be used as a coolant. Liquid hydrogen is also used both as a fuel and as a coolant to cool nozzles and combustion chambers of rocket engines.

  3. Diesel exhaust fluid - Wikipedia

    en.wikipedia.org/wiki/Diesel_exhaust_fluid

    Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue [3]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water .

  4. Autogas - Wikipedia

    en.wikipedia.org/wiki/Autogas

    Thus since 2013, brand-new LPG cars (and LPG cars with less than one year of age) benefit from an important reduction in registration duty. Despite the fact that autogas is excise free in Belgium, it is the cheapest car fuel in Belgium and that it enjoys an important reduction in registration duty, autogas has never reached again the levels of ...

  5. Antifreeze - Wikipedia

    en.wikipedia.org/wiki/Antifreeze

    Most modern cars are built with organic acid technology (OAT) antifreeze (e.g., DEX-COOL [25]), or with a hybrid organic acid technology (HOAT) formulation (e.g., Zerex G-05), [26] both of which are claimed to have an extended service life of five years or 240,000 km (150,000 mi). DEX-COOL specifically has caused controversy.

  6. Freight rate - Wikipedia

    en.wikipedia.org/wiki/Freight_rate

    A freight rate (historically and in ship chartering simply freight [1]) is a price at which a certain cargo is delivered from one point to another. The price depends on the form of the cargo, the mode of transport ( truck , ship , train , aircraft ), the weight of the cargo, and the distance to the delivery destination.