Originally Posted by Diamondback
I seem to be able to squeeze mpg out of vehicles. I used to get low 30s out of our '87 Mustang GT with an automatic and 3:27 gears, and 14 out of my '10 F150 SCREW with a 5.4 3:55 rear towing 10,400 lbs. Yes I know that's the wrong gear ratio for that weight but that can be our secret.
The highest I've seen at 70 was nearer to the 37-39 mpg mark (the 39 mpg was either a short tank or the next one was less efficient and less efficient than the tank before and after the 39 mpg tank. That's realistically within the range I expect anyone to see with this car. Anyone who claims to get 42+ at 69 mph sounds like its not possible to me based on my personal experience with the car as well as the road speed vs mpg curves both by popular mechanics as well as by user kam327.
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