The device claims to save you 30-35 percent on fuel costs, but here’s why it’s a scam and doesn’t actually work.

I clicked on a Youtube video the other day and the first ad I had to sit through was a video for the EcoBox Fuel Saver, an OBD2 device you plug into your car’s OBD2 port that automatically calibrates your car’s fuel consumption to use less fuel.

The Ecobox OBD2 fuel saver device is a scam, does not work the way it’s advertised, is a complete waste of money, and should be avoided at all costs.

Here’s why.

Fuel saver OBD2 devices are only programmed to display a flashy LED show.

These types of OBD2 fuel savers and this exact design (shape, color, and advertising) have been around for years and have all been debunked as nothing more than OBD2 dongles that play a specific sequence of LEDs.

Check out these two videos from EEV Blog and Big Clive,

Both videos first show how, when powered on by an external power supply and not an actual car, the OBD2 dongle plays a specific, yet convincing, LED light show meant to fool its user into thinking this device is actually “talking” and “tuning” your car’s engine for better fuel efficiency.

As definitive proof, EEV Blog shows a blown up-close look at the actual chip, pointing out how it’s not possible for the device to “talk back” to the car’s engine via CAN BUS. Specific lines that are supposed to be connected to CAN BUS are not even connected (there’s no soldering,) at all.

With no way to “talk” to your car’s ECU and engine, there’s literally no way for this device to “tune” your car for better fuel efficiency.

If that’s not proof enough amateur DIY-er Valentina Sanders took apart a similar, if not the same OBD2 device, drew a detailed schematic of the supposed fuel saver, and concluded, corroborating what EEV Blog concluded himself that,

“This unit DOES NOT have any connection to OBD communication. Only what is connected is Power for this flasher to flash.”

“This Plug & Drive OBD2 is just a very simple flasher for probably 50 bucks. For whatever you purchase this for but, it’s a scam. It’s a 100% scam because this device cannot listen, talk and of course, cannot reprogram.”

There are legit OBD2 devices that re-flash your ECU for more power or better fuel consumption, but that type of programming is manufacturer and vehicle-specific that requires proprietary information and a first-hand knowledge of tuning cars for efficiency.

It’s impossible for simple devices, like the EcoBox ECO OBD2 plug-and-drive tuning box, to tune every single vehicle make and model for fuel savings with a generic OBD2 device.

Are DiscountFuelReport.com or EcoBoxFuel.com even a legit sites?

Clicking on the Youtube ad I was forwarded to DiscountFuelReport.com advertising the EcoBox fuel Saver.

Two red flags pop up.

For one, the DiscountFuelReport.com domain name was literally created seven days ago. It’s a fly-by-night type of site.

Next, their success story from “Paul, the cab driver” uses a photo owned by the Boston Globe (story linked here.) The actual cab driver’s name is Celestin, and the story is about banks loans.

It’s a similar story with EcoBoxFuel.com, this site was created in June 2021.

The real reason EcoBox Eco OBD2 fuel saver is being advertised to you.

The real reason you’re seeing ads for fake fuel savers now, more than ever, is that gas prices are at record highs.

Whoever created the EcoBox Eco OBD2 fuel saver is trying to take advantage of this news, advertising a device that delivers 30% fuel savings (which is 15% more than the devices in the videos above.)

Simply put, do not buy the EcoBox Eco OBD2 fuel saver or any similar looking type of device.

These re-branded OBD2 Fuel Savers and their websites are created solely to rip off naïve internet window shoppers.

To conclude, this is what Pat Goss Master Automotive Technician for Motor Week since 1981 said on the matter of fuel saving devices with unbelievable promises.

Over my many years doing the Motor Week TV show I have tested over 900 different fuel saving devices and not a single one of them worked.

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28 COMMENTS

    • And? You should have placed a link… https://www.youtube.com/watch?v=3TvuettmrSs put it in a real car he blew a fuse and didn’t do further testing, and in the comments there are multiple users that claim it works… Both the videos here do not test functions… one dude goes to the conclusion that data pins are connected but he doesn’t know if it works – meaning totally a waste of time to watch it… the other guy proves that it gives no data out to the fake random generating values engine, within the first few minutes of operations, while the device claims that analyzed data and after many miles starts tuning the engine. Where’s the science behind you people saying it does not work? Any engineers here?

  1. How do they get by with total BS on a product like this. It doesn’t even make sense the it could work on all cars always. Not to mention if it worked it would alter the emission check. Just a flashing LED and does nothing else. Save your money for the next fillup.

    • Because

      1. Many people have exactly zero idea how their vehicle works.

      2. Believe that if it’s on the internet (especially a official ad, like a YouTube add) it must be real.

      3. they like the conspiracy ideas behind it, that big companies are trying to stop you from saving fuel, but buy this and you can unlock being a part of a inside group that cheats the oil companies.

      4. Doing actual research (like the 5 seconds it took me to google it) is too much work.

      for the record, I’m here because I was hoping someone already wrote articles on this after seeing the ad.

    • There was one years ago that snapped onto your fuel line…had powerful rare earth magnets in it that would “align the fuel molecules” to burn more efficiently.😝

      • Not to mention the fact that locking up the brakes would have zero effect on the transmission. I don’t think it’s as much BS, as it is sarcasm. Which is especially denoted by the part about driving into Salt Lake. Lol

    • The ad this time tries to tell that narrative – that the creator was kicked out of Harvard days after refusing to sell his invention to The Big Oil Companies.

  2. Find the people who bought these.

    Ask them if they voted for (or otherwise support/believe) Trump.

    90% will answer in the affirmative.

    • No doubt. They are extremely gullible. The one I like now they’re pushing is the “everyone who gets the jab will be dead in 3 to5 years”. My Lord those folks are stupid. How do they even survive from day to day?

      • Thinking that Spike Protein isn’t harmful is what’s stupid. Believing that not only demonstrates total ignorance of the protein’s MOA, but it abundantly reveals the easily programmed, imbecilic nature of lemmings like yourself. After all, 14K REPORTED VEARS deaths (and that’s just the tip of the iceberg, but your feeble intellect doesnt warrant an explanation) is nothing, right? It’s just more deaths than all vaccines in the last 30 years combined…for a virus that kills .3% of the population. Not to mention the 100,000’s of reported injuries. What a smart idea! And yeah, the EcoBox is b****””t.

    • LMAOOO so true you have to be a real smooth brained r***** to fall for this kinda s***. it took 3 seconds to google it and realize it was complete b*******. also that narrative about being expelled from Harvard made no sense. someone finds a way to save tons of fuel, thereby creating a massive aid to the climate crisis, and they expel him??? if that really happened he’d have gotten awards!! what a f****n sham

  3. No doubt. They are extremely gullible. The one I like now they’re pushing is the “everyone who gets the jab will be dead in 3 to5 years”. My Lord those folks are stupid. How do they even survive from day to day?

    • Thinking that Spike Protein isn’t harmful is what’s stupid. Believing that not only demonstrates total ignorance of the protein’s MOA, but it abundantly reveals the easily programmed, imbecilic nature of lemmings like yourself. After all, 14K REPORTED VEARS deaths (and that’s just the tip of the iceberg, but your feeble intellect doesnt warrant an explanation) is nothing, right? It’s just more deaths than all vaccines in the last 30 years combined…for a virus that kills .3% of the population. Not to mention the 100,000’s of reported injuries. What a smart idea! And yeah, the EcoBox is b****””t.

  4. It smells like a scam as soon as you read the headline because if there were a way to get even 15% fuel savings, the car company that found it would use it to sell more cars.

  5. Just wanted to say thank you for publishing this review and potentially saving people from wasting their money. I saw it advertised in a seemingly legit listicle, of course the ad copy was so outrageous and baseless I had to look up reviews. Funny that the first few results are “sponsored” reviews saying how well the product works lol.

  6. For What it’s worth. I got one of these things given to me as a gift. I installed it on my 2015 F-150. It’s just been a couple of days. I’m not sure I’m saving any fuel but the truck thinks so. The average fuel economy displays an increase of about 6 miles per gallon increase going from 22.3 to 25.8 MPG. I get how everybody saying the device doesn’t communicate with the vehicle and if that’s true how does it change the displays? Me thinks there is more than meets the eyes.

    • Self fulfilling prophecy – you’re hyper aware of your fuel mileage so your driving behavior is subtly altered. Your subconscious is messing with you. That’s why REAL science uses double blind studies where no one involved knows whether they are dealing with the test or control group. Valid test would be driving exact same course, exact same conditions, with driver not knowing whether the car had device installed or not.

    • Check your numbers. Thats not 6mpg. Also, it takes many many miles of driving for your average mileage display to register any change. Certainly more than you would drive in a few days.

  7. actually , you don’t need any fuel to power a car engine at all. basically the use of petrol is a scam so you will waste money on your gas. How come people never run out of gas ? that’s because the engines work on hydroponic graphite and shoestring’s.

    • A raw egg in it’s shell between your foot and the gas pedal would be more effective. Increasing gas mileage for just about any vehicle.

  8. A raw egg in it’s shell between your foot and the gas pedal would be more effective. Increasing gas mileage for just about any vehicle.

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