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Mercury Mountaineer

When do you use over driveon your 99 mountaineer?

Answer

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Wiki User
June 19, 2013 8:29AM

Overdrive is the normally allowed position

It won't shift into overdrive until the speed is higher anyway ( such as the

highway / freeway )

If you are towing something or if you are driving in hilly country where the

transmission is constantly shifting between overdrive and drive , then you want

to shut the overdrive off using the switch on the end of your gear selector

lever ( P R N etcetera , O/D OFF will appear in your gauge cluster / dash )