North American 2018 Mazda CX-5 Diesel’s Fuel Ratings Are A Huge Disappointment

Mazda has been promising to offer a diesel engine in the United States for what feels like an entirety, but it’s looking like the wait wasn’t worth it.

According to figures released by the EPA, the 2.2-liter four-cylinder diesel engine will allow the 2018 CX-5 to return 28 mpg city, 31 mpg highway and 29 mpg combined.

That’s massively disappointing as the petrol-powered model is rated at 25 mpg city, 31 mpg highway and 28 mpg combined. In essence, moving up to the diesel engine will only net you 3 mpg city and 1 mpg combined.

The story is largely the same for the all-wheel drive variant as the diesel-powered CX-5 is rated at 27 mpg city, 30 mpg highway and 28 mpg combined. For comparison, the petrol model gets 26 mpg city, 30 mpg highway and 26 mpg combined.

Unfortunately, the situation only gets worse when you factor in fuel prices. The EPA estimates the standard CX-5 has an annual fuel cost of $1,500 (£1,169 / €1,301) but that number climbs to $1,650 (£1,286 / €1,432) for the diesel model. The difference between the all-wheel drive variants isn’t as bad as the EPA estimates drivers would only save $50 (£39 / €43) by sticking with the petrol engine.

One of the few other competing crossovers with a diesel engine is the Chevrolet Equinox. It has a 1.6-liter turbodiesel four-cylinder engine that allows the front-wheel drive model to return 28 mpg city, 39 mpg highway and 32 mpg combined. While both the CX-5 and Equinox diesel are rated at 28 mpg city, the Chevy is rated 8 mpg higher on the highway and 3 mpg better overall.

Mazda hasn’t said much about the CX-5 diesel since 2016 – when it was supposed to arrive in the 2017 CX-5 – and it appears we now know why.

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  • Mind Synthetic

    not a problem, americans dont buy diesel cars anyways, unless its a hill billy truck

    • LJ

      What’s a “bill billy truck”?

      • Brent Morrison

        Chevy, Ford, Ram

        • dumblikeyou2

          In order of most to least redneckness: Ford, Ram, Chevy

  • Rocket

    Mazda should have swallowed their pride and just admitted they were wrong to promise a diesel for the U.S. With the HCCI engine on the way, I just don’t see who will be drawn to this. I wouldn’t, and I’m a certified diesel lover.

  • Kash

    I wouldn’t be surprised if after it launches people don’t start reporting much better numbers than the EPA estimates.

  • Able

    Jumped to conclusions there, haven’t you? Mazda’s 2.5L petrol and 2.2L turbo diesel get about a 1.5L/100km fuel difference based on sticker here in Australia but in the real world it’s a much bigger difference – Mazda’s petrols engines really drink, whereas it’s much easier to get closer to claimed economy in the diesel unit. Might I add, the diesel has a whole 200Nm more torque (couldn’t be bothered converting that to ft lb) and 11kW more power too, making it much more brisk than the petrol.

  • DanSemering

    Who needs that’s when they look so pretty!

  • Brent Morrison

    This is what happens when you listen to car enthusiasts. No wonder manufacturers don’t take these kids seriously.

  • Jørn-tommy Skjellnes

    isnt diesel cheaper than gasoline in the us?

    • dumblikeyou2

      No. It’s been a lot higher than 87 octane for a while now.

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