Surely you're hip to the Diet Coke and Mentos phenomenon of a few years ago. When an enterprising duo realized that the hard-coated candies interacted with the soda in an explosive way, an internet meme was instantly born. Over the last couple of years, though, interest in the parlor trick seemed to wane. Until now.

Fritz Grobe and Stephen Voltz, the two men who helped kick off the fun in the first place, are back, claiming a new record for the longest distance traveled in a car powered by Diet Coke and Mentos: 239 feet.

No, that doesn't seem very far to us, either, though Mark II of their machine is a marked improvement over Mark I. The Mark II vehicle is more aerodynamic and seems to have less mass than its predecessor, which positioned the rider way out in front over a bicycle-like contraption. That said, we think Grobe and Voltz do even better... especially since they used just half the fuel this time 'round.

After dissecting the video, we believe there's a lot more power in the Diet Coke and Mentos recipe to be had, and there must be a better way to stop so much of the fuel from leaking out instead of providing forward thrust. Duct tape, perhaps?

Until they try again with Mark III, feel free to check out the latest Diet Coke and Mentos-powered car in the video after the break.



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  • 25 Comments
      • 3 Years Ago
      I think somebody has WAAAAAAAAAAAAAAAAAAAAYYYYYYYYY to much time on their hands !!!!!!!!!!!!
      • 3 Years Ago
      sheets... you are watching the video of two guys driving a coke and candy powered car. who has too much time on their hands? ;)
      goodoldgorr
      • 3 Years Ago
      I guess that big oil will buy that and we will never see that offered to consumers, LOL.
      Dan Frederiksen
      • 3 Years Ago
      don't eat stuff that has aspartame in it. donald rumsfeld got it pushed through FDA approval with a favor from his reagan buddies. not only is it unhealthy but it doesn't work as a diet either
        BipDBo
        • 3 Years Ago
        @Dan Frederiksen
        ...doesn't work as a diet either That's the funniest thing I ever read from you.
      He Said
      • 3 Years Ago
      Over 200ft and 0 calories. OMG
      Ryan
      • 3 Years Ago
      I guess there is no news on electric or alternative powered cars? Go interview someone building one in their garage or something. There is some guy on YouTube who has used solar power and breaks apart water to generate hydrogen for his cars. http://www.youtube.com/watch?v=xEdQRVQtffw
        Joeviocoe
        • 3 Years Ago
        @Ryan
        "used solar power and breaks apart water to generate hydrogen for his cars" The link you provided is about Home power ONLY. It looks like he was driving an EV too. But the hydrogen was for home power during the winter months. It was a very nice setup. Expensive and requires a large property, but still awesome.
          Letstakeawalk
          • 3 Years Ago
          @Joeviocoe
          It is a nice system, and newer versions of everything he used are becoming more readily available. Better storage tanks, smaller/cheaper electrolysers, better batteries, etc. If he were to recreate that system today, it would be much smaller and less expensive. That's great!
          Ryan
          • 3 Years Ago
          @Joeviocoe
          If only there were lots of large flat roofs that businesses or schools could rent out to individuals and power companies to install their own panels on. It would help shade things in the summer, earn a percentage, reduce transmission line loss, reduce pollution, provide some daytime power if the grid goes down, etc... Maybe if we got articles and interviews about this homebrew stuff and getting it to go mainstream, we could learn how he was powering his car. Home-made fuel cells aren't too crazy.
      EZEE
      • 3 Years Ago
      Hey Kids This a great Volt article from Car and Driver. I would send it to ABG as a tip, but oddly, they never seem to use them. Most detailed article I have seen on the crash tests, and subsequent media hysteria. http://blog.caranddriver.com/chevy-volt-hysteria-we’re-all-going-to-die-or-an-application-of-facts-and-rationality-to-flaming-batteries-and-melting-chargers/
      • 3 Years Ago
      I wonder how it would work in space
      ronwagn
      • 3 Years Ago
      Coke and Mentos should subsidize the best videos using their products. It is great advertising.
      Smith Jim
      • 3 Years Ago
      The lab coats are a nice touch.
        Spec
        • 3 Years Ago
        @Smith Jim
        And the helmet. Like he is really gonna need it.
        Sasparilla Fizz
        • 3 Years Ago
        @Smith Jim
        Very true...
        Smith Jim
        • 3 Years Ago
        @Smith Jim
        I'm reminded of a funny story about lab coats. I once worked for a start-up company that photographed guys in lab coats for some promotional literature. It was a pathetic attempt to appear high-tech but that's not the end of the story. These lab coats were stored in a closet. One day, a coworker of mine tripped while going down some stairs. He hit a wall with his face and ended up bleeding from his nose. He was not seriously injured and his nose stopped bleeding. He put on one of the lab coats in an effort to hide the blood-stained shirt. After a really long day at work we went out to get some food at Denny's. The waitress seemed really interested in my friend and he asked her for a date. She accepted. I found out that she initially thought my friend was a doctor. LOL. So, all you single guys looking for a date, splash some fake blood on your shirt and put on a lab coat and visit some restaurant that has hot waitresses.
      Letstakeawalk
      • 3 Years Ago
      Terrible CO2 emissions, though.
      Nick
      • 3 Years Ago
      Not green or really funny, and quite wasteful.
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