Fuel Economy Update for September - Long-Distance Runner - 2015 Hyundai Sonata Long-Term Road Test

2015 Hyundai Sonata Long-Term Road Test

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2015 Hyundai Sonata: Fuel Economy Update for September - Long-Distance Runner

by Dan Frio, Automotive Editor on October 6, 2015

2015 Hyundai Sonata

It was another busy month for our 2015 Hyundai Sonata: nearly 2,500 miles added to the odometer in September. That's a lot for a car that many of our staff (and apparently our readership) finds boring, drab, competent, uninspired, and other degrees of faint praise. For the record, I like this car more every time I drive it, but that's for another post. 

Josh's trip to the Bay Area accounted for about a third of our September miles, and although he may have only averaged 30.2 MPG on his trip, his miles helped lift the Sonata's lifetime average a couple of points, from 25.9 to 26.1 mpg.

One of his tanks was even a record-setter: 127.4 miles covered using just 3.6 gallons. That works out to 35.7 mpg, exceeding the Sonata's EPA highway rating.

It's nothing to get excited about, as it's a small sample size of highway miles on Josh's return leg. But it got me curious about how our Sonata is performing on "long tanks," those with, 300 trip miles or more, for example. The result isn't too shabby.

Since the Sonata joined our fleet in December, we've covered 300-plus miles on a single tank 25 times. Three of those times we covered 400 miles or more. Over those 25 tanks, the Sonata is averaging 27.6 mpg — very near the EPA combined rating.

And not all of those tanks were from road trips, either. I'd say most of them aren't. Phil had one 300-plus tank on his recent Colorado road trip. Josh had three of them on his Bay Area run. There are some other long-distance runs mixed in there, but I'd say most of these are true combined driving miles. We'll have to consider stretching our Sonata's legs — and tanks — a little bit more to see an increase in its lifetime average. 

Worst Fill MPG: 16.2
Best Fill MPG: 35.7
Average Lifetime MPG: 26.1
EPA MPG Rating: 28 Combined (24 City/35 Highway)
Best Range: 429.8
Current Odometer:

Dan Frio, Automotive Editor

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