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RPM is short for Revolutions Per Minute. It is the measurement of how many times your engine is rotating each minute. As you accelerate, your RPM will increase until the next gear is selected, lowering the RPM. RPM is the whole reason for transmissions: if there was only one gear the RPM would get so high that the engine would become damaged. By shifting into higher gears, the RPM is lower and you get better gas mileage.

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โˆ™ 2011-07-20 15:44:33
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Q: What does RPM in a car mean?
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