Is it good to drive in overdrive all the time?
Is it good to drive in overdrive all the time? Overdrive improves fuel economy, and makes for less wear and tear on the vehicle when you are driving at highway speeds. Having the overdrive off is fine if you are driving in hilly areas, but if you are on the highway, it is best to have it on because you will get better gas mileage. Is it bad to drive in overdrive? It's not bad to drive with overdrive off and does no harm to the transmission. However, you will get worse fuel economy and have more noise at high...