Quote:
Originally Posted by Baltothewolf
I wish I could find these charts for my '91 Ford Mustang LX. I am driving that to work instead of the insights due to me not being able to use my laptop in the insight, nor lay down and sleep in the back haha. Would like to know which MPH is the most efficient in time/fuel consumed ratio.
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My rough estimate for '91 Ford Mustand LX' indicate that you can get best MPG, in the speed range of 30 to 40 MPH in 3rd gear. (assuming that it is 4 speed automatic transmission).
In fact, the pattern of graph I have posted will be similar for all models except for the change in values.
Normally, we get best mileage at lowest possible speed in top gear. In this case 4th gear is actually an overdrive with min. speed of around 50 mph.
Since you are driving in city, vehicle speed is decided by traffic on the road.
In such case, it always economical to drive in highest possible gear for that speed. In other words we should drive in lower engine r.p.m. range. for getting best possible MPG.
PRAVINS