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  2. Fuel saving device - Wikipedia

    en.wikipedia.org/wiki/Fuel_saving_device

    Underdrive pulleys modify the amount of engine power that can be drawn by accessory devices. Such alterations to the drive systems for alternators or air conditioning compressors (rather than the power steering pump, for example) can be detrimental to vehicle usability (e.g., by not keeping the battery fully charged), but will not impair safety ...

  3. Not-To-Exceed - Wikipedia

    en.wikipedia.org/wiki/Not-To-Exceed

    For EGR-equipped engines, the engine coolant temperature must be greater than or equal to 125-140 degrees Fahrenheit, depending on intake manifold pressure. Engine after treatment systems' temperature must be greater than or equal to 250 degrees Celsius .

  4. BlueTEC - Wikipedia

    en.wikipedia.org/wiki/BlueTec

    BlueTEC is Mercedes-Benz Group's marketing name for engines equipped with advanced NO x reducing technology for vehicle emissions control in diesel-powered vehicles.The technology in BlueTec vehicles includes a selective catalytic reduction (SCR) system that uses diesel exhaust fluid, and a system of NOx adsorbers the automaker calls DeNO x, which uses an oxidizing catalytic converter and ...

  5. 5 Car Brands With the Most Reliable Engines - AOL

    www.aol.com/5-car-brands-most-reliable-170022334...

    The 5.7-liter LT1 engine powered Corvettes and Camaros with plenty of horsepower during the 1990s and the new Gen V engines are moving Chevrolet up J.D. Power’s dependability rankings yearly.

  6. List of gasoline additives - Wikipedia

    en.wikipedia.org/wiki/List_of_gasoline_additives

    Fuel additives in the United States are regulated under section 211 of the Clean Air Act (as amended in January 1995). The Environmental Protection Agency (EPA) requires the registration of all fuel additives which are commercially distributed for use in highway motor vehicles in the United States, [8] and may require testing and ban harmful additives.

  7. Active Fuel Management - Wikipedia

    en.wikipedia.org/wiki/Active_Fuel_Management

    Active Fuel Management (formerly known as displacement on demand (DoD)) is a trademarked name for the automobile variable displacement technology from General Motors.It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy.

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