A Curious Disparity

While Amelia and I were spending a week away, I noticed a large disparity in the gas mileage my vehicle was achieving.

The vehicle in question, a 2012 Jeep Wrangler Unlimited Rubicon

Normally, I get between 15-16mpg in this tank. It doesn’t matter how I drive, or the kind of road I’m on, those are the numbers. The only time that has ever changed has actually been for the negative. If I push it on the interstate and go over 75mph, my mileage will plummet to as low as 13mpg.

Normal mileage readings from my app.

But the opposite happened. My gas mileage increased to 19mpg. Most of my driving was highway/interstate driving. It has me puzzled.

Courtesy the app I use to track my automotive expenses.

The only thing I can think of would be the difference in terrain. The area around Indianapolis doesn’t have many hills.

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