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Unless the 3rd speed is already an overdrive, yes. What matters is the highest gear keeps your engine RPM around 2500 rpm at around 70 mph.

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Q: Would a 3 speed automatic transmission with no overdrive in a 1.8L 4 cylinder Chevy Prizm lead to more wear and tear on the car when driving at highway speeds?
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How do you use overdrive in Toyota Camry 1999 automatic?

You have to use it when you are driving in mountain areas where to have high speed is not a good idea. The overdrive function does allow the transmission to switch to higher gears.


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When is overdrive on a transmission most economical?

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Where is the overdrive on a Subaru Outback?

Overdrive in Subarus, like just about every car with an automatic transmission built in recent memory, is built into the routine working of the transmission. Your transmission selector, if it's like mine, has a "D" for drive then the next digit down is a "3". Choosing the "D" allows the vehicle to access overdrive when appropriate. Driving with "3" as your chioce does not allow the overdrive to work. --Ken


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How do you use overdrive in a car with an automatic transmission?

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What gas mileage does a Ford Taurus 6 cylinder automatic transmission get?

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