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  1. What is "engine braking" on 18-wheelers and why is it banned …

    Nov 1, 2005 · I often see signs in smaller towns that say “no engine braking!” in reference to trucks. I’d imagine that it’s noisy or somehow dangerous. Google searches only turn up manufacturers of …

  2. What's this control on a Mercedes bus? - Straight Dope

    Jul 20, 2023 · It’s quite normal to have a “retarder” on trucks and buses in Europe. They operate by restricting the exhaust to make engine braking more effective. This has two benefits: It saves wear …

  3. What would happen to a car if you stepped on both the gas and brake ...

    Jan 19, 2024 · The engine and transmission on a powerful car may be slightly less powerful than the brakes, but the brakes have a finite lifetime before they heat and fade, whereas the engine/trans can …

  4. Stick Shift vs Automatic vs Single Pedal - Straight Dope

    Nov 17, 2025 · But you can one-pedal drive for efficiency, either accelerating, maintaining speed, or coasting under slight regenerative braking to a stop using only the right pedal. If you need more …

  5. Factual question about the movie 'Unstoppable' - Straight Dope

    Apr 26, 2011 · [li]The throttle and the dynamic braking lever, while adjacent, move in opposite directions–the dynamic brake lever would have been pushed up to engage, but the throttle was …

  6. How do hybrid car batteries handle the number of charging cycles ...

    Aug 11, 2024 · They use much smaller batteries than a battery electric car and a chemistry that is not intended to be deeply cycled. Because the battery is regularly recharged by the engine and …

  7. Why this runaway Honda? - Factual Questions - Straight Dope

    Oct 2, 2024 · There are news stories from northwest Minnesota about a state trooper who was able to stop a runaway 2022 Honda Pilot driven by a teenager. According to the stories, the teen wasn’t able …

  8. Why do diesel-electric locomotives still use "notch" load control?

    Mar 15, 2021 · Early diesel-electric trains employed a load control (“throttle”) lever that featured eight discrete forward settings, called “notches” (in addition to another position for idle, and still another …

  9. In-town car acceleration: Not 0-60, but a metric for 0-30 times?

    4 days ago · It’s got enough of a battery to drive around on the electric motor at low speeds for a short time, and then the battery gets recharged by the gas engine and / or regenerative braking. I would …

  10. Locomotives pushing or pulling a train - Straight Dope

    Jul 5, 2014 · The first type is dynamic braking.This is generally used while the train is motion so it isn’t really germane to the discussion about starting and stopping. It uses the traction motors to act as …