About Eco Fuel

✔️3 Day Money Back Guarantee 
We have a 3 day money back guarantee on this product only in case if the product is damaged when you receive it . Please Call us in that case as soon as you receive the product. But We Don't Offer Refunds in any another case. For any Other questions regarding Refunds please call us at 1-888-723-8875. We do not guarantee any % of fuel savings as this depends on a lot of factors . 
Yes the Product comes with 2 Year Warranty 
Does the product void your Car Warranty? 
The Modern Stuff is not be responsible if this product voids your Car Warranty.

Does the Product Work?

According to a lot of persons who were in his beta testing phase as well as a lot of customers using the product now. It's saving at least 15% Fuel. 

Installation and Calibration

  1. Pull the Car Key out from the ignition.
  2. Find OBD2 connector(*) in your car and Plugin EcoOBD2
  3. Insert the key into the ignition and twist the key to the first stage. (Do not start the car)
  4. Press the reset button for about 5 sec. After releasing the button, just wait for a while about 30-54 sec. (EcoOBD2 will communicate and establish the connection with ECU)
  5. Start up the engine.
  6. EcoOBD2 will recognize your vehicle and your driving habits, after around 200 km/150 miles driving and thus EcoOBD2 will adjust itself to match your car perfectly for more fuel saving.
How Does It Work? 
  • EcoOBD2 is a Chip Tuning Box which can be plugged into OBD2 connector of your car to decrease the fuel consumption of your car.
  • When it plugged into OBD2 connector, EcoOBD2 receives the information from the car computer ECU. With the received data from ECU,
  • EcoOBD2 adjusts the boost pressure, the quantity of fuel, injection timing, and pressure to decrease the fuel consumption of your car.
  • EcoOBD2 Chip Tuning Box does not exceed the manufacturer requirements. It works only within the tolerance of the engine.
  • EcoOBD2 does not damage the engine and the car computer ECU or not cause any negative effects to the car factory setting.
  • EcoOBD2 does not change any of the settings permanently. To turn back to the car's original settings, just unplug EcoOBD2 from OBD2 connector. 


Please note we are getting a lot of calls asking if we give refunds if the product saves you less % than described on fuel Savings ? 

NO, We don't offer any refunds in that case .