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  2. 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 .

  3. Diesel exhaust - Wikipedia

    en.wikipedia.org/wiki/Diesel_exhaust

    Selective catalytic reduction (SCR) injects a reductant such as ammonia or urea — the latter aqueous, where it is known as diesel exhaust fluid (DEF) — into the exhaust of a diesel engine to convert nitrogen oxides (NO x) into gaseous nitrogen and water.

  4. Automatic transmission fluid - Wikipedia

    en.wikipedia.org/wiki/Automatic_transmission_fluid

    Automatic transmission fluid (ATF) is a hydraulic fluid that is essential for the proper functioning of vehicles equipped with automatic transmissions. Usually, it is coloured red or green to differentiate it from motor oil and other fluids in the vehicle. This fluid is designed to meet the unique demands of an automatic transmission.

  5. Bitcoin vs. gold: Which is the better inflation hedge?

    www.aol.com/finance/bitcoin-vs-gold-better...

    So if this kind of gold investment is held long enough, it could cost more than the Bitcoin commission, depending on exactly how much that commission cost. Frequent trading, however, can make ...

  6. Indium tin oxide - Wikipedia

    en.wikipedia.org/wiki/Indium_tin_oxide

    Indium tin oxide (ITO) is an optoelectronic material that is applied widely in both research and industry. ITO can be used for many applications, such as flat-panel displays, smart windows, polymer-based electronics, thin film photovoltaics, glass doors of supermarket freezers, and architectural windows.

  7. Iridescence - Wikipedia

    en.wikipedia.org/wiki/Iridescence

    Red is seen from longer angles of incidence than blue. Iridescence can also be created by diffraction. This is found in items like CDs, DVDs, some types of prisms, or cloud iridescence. [7] In the case of diffraction, the entire rainbow of colours will typically be observed as the viewing angle changes.

  8. Make AOL Desktop Gold your default browser or email client

    help.aol.com/articles/make-aol-desktop-gold-your...

    Open Desktop Gold. Log in using your username and password. Click on Settings. On the General tab click on the Make Default buttons to make AOL Desktop Gold your default browser and/or email client. A new window opens up. From the Default apps tab go to the Web Browser or to the Email section and select AOL Desktop Gold from the drop-down menu.

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