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When do you use overdrive?

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Answer Overdrive is to be used in everyday use. You should turn off the OD when you are hauling a load. If you are hauling a lot, the OD off just keeps the overdrive gear from kicking in so that the gearing stays lower than the 1 to 1 ratio that the over drive gives. OD off allows lower gearing which means the engine has less load placed on it. The engine will rev a little higher, but that won't hurt anything. Answer When a vehicle is climbing in hilly roads, the gear changes in the transmission are very frequent. The OverDrive button/switch can be used to prevent the vehicle from switching into a top gear. That subsequently increases the RPM of the engine and gives better performance. Overdrive simply means the Top Gear. It should be used on highways or in open road driving only. Do not use it in frequent stop start conditions. Answer You use an overdrive when the engine is not straining, i.e., the road is not going up but rather going down, or your car is not loaded with heavy weights like passengers or goods, and you want to save gasoline. Answer It should be used at highway speeds of over 55 mph, but its OK to have it on all the time since your car wont shift into overdrive until the conditions are right (speed and RPM). Answer You will use it when you are cruising along on the freeway/dual-carriageway/autobahn. Anytime you are maintaining a steady speed and don't expect to slow down or brake for awhile. Answer When I have owned vehicles with automatic transmissions, I used overdrive on the interstates. And this was only if I was approaching 60 MPH on level ground.
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