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  2. Automatic transmission fluid - Wikipedia

    en.wikipedia.org/wiki/Automatic_transmission_fluid

    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.

  3. Cold inflation pressure - Wikipedia

    en.wikipedia.org/wiki/Cold_inflation_pressure

    Cold inflation pressure is a gauge pressure and not an absolute pressure. This article focuses on cold inflation pressures for passenger vehicles and trucks. The general principles are, of course, applicable to bicycle tires, tractor tires, and any other kind of tire with an internal structure that gives it a defined size and shape (as opposed ...

  4. SAE J300 - Wikipedia

    en.wikipedia.org/wiki/SAE_J300

    The oil fails the test at a particular temperature if the oil is too viscous. The grade of the oil is that associated with the coldest temperature at which the oil passes the test. For example, if an oil passes at the specified temperatures for 10W and 5W, but fails at the 0W temperature, the oil is grade 5W. It cannot be labeled 0W or 10W.

  5. Hydraulic fluid - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_fluid

    NaK-77, a eutectic alloy of sodium and potassium, can be used as a hydraulic fluid in high-temperature and high-radiation environments, for temperature ranges of 10 to 1400 °F (-12 to 760 °C). Its bulk modulus at 1000 °F (538 °C) is 310,000 psi (2.14 GPa), higher than of a hydraulic oil at room temperature.

  6. Tell-tale (automotive) - Wikipedia

    en.wikipedia.org/wiki/Tell-tale_(automotive)

    The oil pressure idiot light lights when engine oil pressure drops below a predetermined level. The light normally appears when the vehicle ignition is turned on, but the engine is not running, as it detects no oil pressure due to the oil pump not operating (the oil pump is powered off the crankshaft, so only operates when the engine is running ...

  7. 13 Things You Should Never, Ever Carry in Your Wallet - AOL

    www.aol.com/finance/13-things-never-ever-carry...

    Bad idea. Think about it: lose your wallet and bam, you're an identity thief's jackpot . Keep it stashed at home, and only bring it out when you need it for a new job or a similar occasion.

  8. This Is How to Tell When Your Olive Oil Is Bad

    www.aol.com/tell-olive-oil-bad-201500454.html

    While it might seem like a food that doesn’t go bad , olive oil does expire. A sealed bottle of olive oil generally lasts 18 to 24 months. But it depends on the variety of oil.

  9. Oil pressure - Wikipedia

    en.wikipedia.org/wiki/Oil_pressure

    Murphy oil pressure gauges with switches that activate on low pressure. Oil pressure is an important factor in the longevity of most internal combustion engines. [1] With a forced lubrication system (invented by Frederick Lanchester), oil is picked up by a positive displacement oil pump and forced through oil galleries (passageways) into bearings, such as the main bearings, big end bearings ...