Best speed for MPG performance?

[kirnma]

I have a 2-door base with a 2.3L, auto, OBX wheels and tires, and I regularly get 25+ mpg on the highway going around 70. However, I do not use cruise control since it seems to downshift and go in boost way too easily on inclines. Oh, regular gas and 2-wheel drive.

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[Owl]

With my 2Dr 2.7/Auto I get about 23 MPG (calculated)... when doing 90% highway @ 70 MPH, and I'm going up into the foothills (1500 feet rise), and then back down again during a 90 mile trip.

I'm running OBX tires/rims on my Base so I use the calculation (32/30)x(stated-MPG)... since I didn't do any Forscan change to the tire-size variable.

I think I can eek out about 24 MPG if I go 65, but that is about it.

 

[da_jokker]

Stay under 65 and staybout of boost = best MPG.

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