Turning overdrive off on flat highway important?

[OldNBold51]

Re: Turning overdrive off on flat highway important?

Thanks all for your replys. I guess the whole reason for this is a trip that nnormally takes less then aquarter tank of gas on a flat surface is taking me 1/2 or more with the over drive off. I just see my mileage disappear with it off. My boat ways roughly 1600 pounds and my towing cap is around 4k with the towbar so im under weight towing. I know if i was doing hills and steep grade its a must. Im planning a trip to south padre and if any of you ever driven it there is barley a speed bump of a hill between san antonio and there. It would be nice not having to stop for fuel every 5 mins.

Don't forget you'll almost always have a headwind heading down there. I just made that trip from Austin w/o my boat and going down got 19.5 mpg against the wind and 21mpg coming back with the wind. The previous poster said, if the trans is "hunting and pecking" for the right gear, take it out of o/d and back down on the mph.

I've towed with and w/o O/D engaged and either way, the mileage difference wasn't but 1-1.5 mpg difference between on and off O/D. I usually lose 4-5 mpg and that's all weight and wind dependent.

 

[sethjon]

Re: Turning overdrive off on flat highway important?

If you want decent gas mileage leave it on.