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In normal driving conditions operating in Overdrive is fine and expected. In conditions of heavy loads or pulling something i.e. (trailer) overdrive should not be used. The transmission will shift up and down alot and in turn possibly overheat the transmission fluid creating extensive wear on the transmission.

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โˆ™ 2006-04-09 01:04:05
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Q: Is it okay to always drive in overdrive in the 1991 ford explorer?
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