Testing
How to Measure Your Fuel Savings with Our Devices
Want to see how much our fuel-saving devices help your car or truck? Here's a clear guide on how to measure the difference. The key is to run two tests under the most similar conditions possible: one before installing our device, and one after.
Method 1: Using OBFCM Data (For Newer European Cars)
If you have a car manufactured in 2021 or later for the European market, you can use OBFCM (On-Board Fuel Consumption Monitoring) data.
- Get an OBFCM-compatible OBD2 scanner: You'll need a small device that connects to your car's OBD2 port. We recommend the MUCAR BT200 PRO (around 34 EUR on Amazon), but any OBD2 scanner with OBFCM functionality will work.
- Conduct two experiments: Follow the "Two Experiments" guide below, using the OBFCM data from your scanner to measure fuel consumption instead of manual fuel station readings.
Method 2: Fuel Station Measurement (For All Other Cars)
For all other vehicles, you'll measure consumption directly at the fuel station.
The Two Experiments: Achieving Accurate Results
The core idea is to drive under nearly identical conditions for both tests: first, without our device, then with it. While achieving perfectly identical conditions is impossible, aim to keep them as close as possible.
Key conditions to keep consistent:
- Car: Same vehicle, same load, same tire pressure.
- Environment: Same wind conditions/directions, same temperature, dry road (avoid wet conditions if possible).
- Driving: Same constant speed (use cruise control if available), same route, same road conditions (e.g., dry).
- Fuel: Same fuel type, same fuel station, even the same pump.
Experiment 1: Baseline Consumption (Without Device)
- Fill your tank to the brim:
- Fill until fuel starts to overflow from the filler neck.
- Important: Gas station pump nozzles often shut off before the tank is completely full. You'll need to manually hold the pump handle to continue filling until fuel leaks out.
- Watch for air pockets: Some tanks, especially in passenger cars, have complex shapes that can trap air. After initial filling, wait a few minutes. If the fuel level drops, slowly add more fuel until the level remains stable for several minutes. For diesel, pour slowly to let foam dissipate.
- Drive a consistent route:
- Close the fuel cap.
- Drive a distance of 100 kilometers or more on a road where you can maintain a fixed, constant speed.
- If you have cruise control, use it.
- Choose a time with minimal traffic to avoid speed changes.
- Consider driving slightly slower than usual on that road and turning on your hazard lights to avoid bothering other drivers.
- Plan your route to return to the same gas station where you started.
- Refill and record:
- Upon returning, refill the tank again to the overflow point at the same pump.
- The amount of fuel you add is your consumption without our device.
- This completes the first experiment.
Activation and Second Experiment Readiness
After finishing Experiment 1, install the devices according to our Manual
- Wait 7 days after installation for the devices to fully activate. Drive during these days at least 2 hours daily. If the car is still, the activation will be delayed.
- After 7 days, contact our manager to confirm your car is ready for the second test.
Experiment 2: Consumption with Device
- Repeat Experiment 1 exactly: Refuel at the same station and pump. Drive the same road at the same speed. Ensure the car's load, tire pressure, and even approximate air temperature are the same as in the first experiment. The car should also be equally warmed up at the start of both tests.
- Compare results: After completing Experiment 2, compare the fuel consumed in both tests. For example, if you used 6 liters in Experiment 1 and 4 liters in Experiment 2, that's a 30% fuel economy with our devices.
Important Considerations for Optimal Results
- Device "Memory": Our devices affect car parts, which then continue to emit their own energy for about a month after removal. This means if you test with the device first and then remove it to test without, your "without" reading will be inaccurate. Always test without the device first, then with it. If you need to re-test without the device, wait at least one month after removing it.
- Refueling for Efficiency: For maximum device efficiency, try to refuel when your tank is at least 25% full. The existing fuel helps activate the new fuel faster. This habit also benefits your fuel pump by preventing debris from the bottom of an empty tank from clogging it.
Common Testing Issues and Solutions
Based on our experience, here are some common challenges and tips for accurate testing:
- "Fill to the neck": This means until fuel visibly overflows. Do not stop when the pump clicks, as this level can vary.
- Tank design limitations: Some tanks cannot be filled to the absolute brim without leaking from other openings. If this happens, your car isn't suitable for this "overflow" testing method.
- Air pockets: Especially in passenger cars, air can get trapped during filling. After initial overflow, wait 5 minutes for the fuel level to stabilize. If it drops, slowly add more until it remains stable. This might take up to 15 minutes. Some cars have an air release button on the filler neck; pressing it repeatedly while filling can speed this up.
- Engine off during refueling: Always turn off your engine when fueling. A running engine will cause fuel to move around, preventing you from ever reaching a stable "full" level.
- Use cruise control: If your car has it, use cruise control to maintain a constant speed during your test drives.
- Consistent driving: Avoid braking and overtaking. If you're on a busy road, drive in the slowest lane at a slightly reduced speed with your hazard lights on to signal other drivers and maintain consistency.
- Temperature consistency: Try to perform both tests at similar temperatures. You can use time of day (e.g., day vs. night) to find matching temperature windows if needed.
- Engine warm-up: Ensure your engine is equally warmed up at the start of both tests.
- Tire pressure: Check and maintain consistent tire pressure for both tests. Any changes will affect consumption.
- Dry weather: Conduct both tests in dry weather. Wet roads increase consumption, and it's impossible to guarantee identical rain conditions for two tests.
- Pre-test fill: For the second test, fill your tank to the maximum 12 hours in advance. Then, right before the test drive, top it up to the very neck. This allows more time for our devices to activate the fuel.
- Same pump and station: Always use the same pump at the same fuel station for both fill-ups. Even if there's a pump calibration error, it will apply to both tests, canceling out its effect on your percentage savings.
- Consistent fuel quality: Try to use fuel from the same brand/network for both tests, as fuel quality can vary between providers.
If you've followed all these points and still aren't seeing savings, try checking your average consumption during normal driving. If there's still no noticeable saving, please contact your dealer for chip replacement.