2.0 MPG gas mileage tests (so far) and differences using 87 vs 92 octane

[bdaniel230]

I am still in the 28 to 30MPG range using 89 and 91 octane. I really am tempted to put in some 110 racing fuel but I know that it would make it run fat. But.. still a temptation.

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[Anton4]

Everyone is all over the map with their gas milage so everyone can take this data with a grain of salt. It's simply my data.

XLT 4K AWD FX4 Ecoboost - 80% highway 20% city

I don't know what I'm doing wrong, but I have the same vehicle options as you and I'm only getting 21 MPG using 87 octane.

 

[grumpyunk]

Total miles almost 560, 34mpg == 10.001g for 34x miles. This is Trip 2, showing 37 minutes, 41.5 miles, and 36.9 mpg traveling about what the speedo indicates. That was about the average based on time/distance for the whole trip, right around the mid-60's overall, including 3 stops.

XLT ecotoot with FWD, driver that has decades of getting good mpg out of a vehicle.

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