Highway MPG - 2014 Mazda CX-5 Long-Term Road Test

2014 Mazda CX-5 Grand Touring AWD Long-Term Road Test

2014 Mazda CX-5: Highway MPG

October 21, 2013

2014 Mazda CX-5

Tuesday night I drove the 2014 Mazda CX-5 from Orange County to San Diego and back, a relatively flat 180-mile trip with speed averaging about 70 mph and minimal traffic. They were perfect conditions for evaluating highway fuel economy.

This, according to the CX-5's on-board computer, was the result. The EPA rates the CX-5 at 30 mpg on the highway.

I've done better, but that was on a mostly downhill route.

Josh Jacquot, Senior Editor @ 19,097 miles


  • nxtiak nxtiak Posts:

    My 2014 Touring w/Tech FWD, I drove from San Jose to Southern California Inland Empire area and while on the 5, went 70mph with AC full blast got 38MPG. Then 2 days of city driving (work) when I filled up it ended at 32MPG avg.

  • 7driver 7driver Posts:

    With the limited experience I have with a GT AWD, I've found the trip computer to be about 0.5MPG pessimistic versus calculating from the gas pump and the trip odometer. How about you?

  • greenpony greenpony Posts:

    0.5 mpg pessimistic seems OK. My rule of thumb is +/- 5%. Within that range, then I'd consider the trip computer accurate enough. The trip computer in my car is sometimes a little optimistic, sometimes a little pessimistic, but always gives me a number within 5% of my calculated mpg.

  • banhugh banhugh Posts:

    My 8th generation Accord is always optimistic, about 5-6%

  • craigo81 craigo81 Posts:

    EPA estimates are made by varying speeds according to a formula (car and driver has an excellent article about this). With its boxy shape, constant 70 mph in a CX5 will eat into the mpg a little bit. Central TX has a highway with an 85 mph speed limit, driving at 90 for a ways on it the computer had me at 24.5 mpg on level sections.

  • cx7lover cx7lover Posts:

    Mazda's MPG calculator has been pretty accurate since my 2012 Mazda6. It was always either under near or on point, never optimistic.

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