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Going up hills doesn't allow engine to "lug" and overheat Going down hills supplies engine braking for safety and will prevent brakes from fading and overheating

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Q: What happens when changing gears from overdrive to 3 and why to do it on hills?
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What does Overdrive do on a Dodge Ram 1500?

Turning off the overdrive is basically preventing the truck from shifting gears past 3rd. It's useful when you're going up or down steep hills. answer Dodge Ram trucks come stock with an overdrive, or O/D, function that enables them to switch between three and four gears. When the overdrive is off, the truck operates on three gears, allowing it to pull more weight and giving it more power. When the overdrive is on, the truck operates on four gears, using less power and less gas.


Should you drive around town with the gear shift located in overdrive instead of drive?

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Overdrive is the normally allowed position . It won't shift into overdrive until the speed is fast enough anyway , but if you are going up and down hills and the transmission keeps downshifting you might as well turn the overdrive feature off until you are out of the hills Just adding to the answer : Also if you are towing something you want to shut off the overdrive


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Do you put a 2005 Jeep Wrangler in overdrive when not towing?

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When to use overdrive on Mazda tribute 2001?

Overdrive is always on by default every time you turn on the engine, even if last time you drove you turned it off. Given that Mazda does this, I believe it is their intention to use overdrive all the time. However, there are times I would turn it off. This would be when going up and down small hills where the transmission has to constantly change gears. It has to downshift when going up hill, and upshift going down hill. To minimize how many times it has to go in and out of overdrive, I turn it off on those kind of drives. Also, when towing a heavy load, I recommend turning it off, since it is not designed for the extra load.


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