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Published on May 15th, 2012 | by Zachary Shahan


Advertised vs Real-World Fuel Economy Gap Doubled in One Decade

Interesting story here. Admittedly, it’s not an issue I’ve given a lot of thought to — the real-world versus advertised fuel economy of cars, and how the difference between them has grown in recent years. More on the topic:

Gap Between Advertised And Real World Fuel Economy Doubles In A Decade (via Gas 2.0)

On some level, we all know that automakers advertised fuel economy numbers are a bit…optimistic, shall we say. So while there may be a glut of 40 mpg compact cars on the market right now, there has been some hearsay that the real world numbers rarely align with the advertised numbers, no matter how…

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About the Author

is the director of CleanTechnica, the most popular cleantech-focused website in the world, and Planetsave, a world-leading green and science news site. He has been covering green news of various sorts since 2008, and he has been especially focused on solar energy, electric vehicles, and wind energy for the past four years or so. Aside from his work on CleanTechnica and Planetsave, he's the Network Manager for their parent organization – Important Media – and he's the Owner/Founder of Solar Love, EV Obsession, and Bikocity. To connect with Zach on some of your favorite social networks, go to and click on the relevant buttons.

  • Dcard88

    American drivers are at least half the problem. Hurry and slow down.

    Why are we in such a hurry? If you are at all concerned about mpg, than you have no excuse for wearing out the brakes. I get +15% mpg with my hybrid, but I try to never come to a full stop. No tickets so far.

    • Zachary Shahan

      I never understood that. Goes to show how much common sense we need to impart on the public.

    • Zachary Shahan

      although, i don’t just see it in the U.S. think i see it even worse in Europe. but at least similar

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