Oktane Labs · Pre-orders open
Fuel got expensive. Your car can use less.
A plug-in device for the OBD port of petrol and diesel cars, built to help everyday drivers burn less fuel. No tools, no workshop.
Cancel anytime before shipping for a full refund.
Average petrol price across the EU in early October 2026
Average diesel price across the EU in the same week
Rise in EU fuel costs for drivers, July 2026 vs. a year earlier
How it works
Three steps. Zero tools.
Every car built since the early 2000s has an OBD port under the dashboard. That's all you need.
Find the port
The OBD socket is usually under the steering wheel, near your knees. Your car manual shows exactly where.
Plug it in
Push the device into the socket. It works with your car's engine computer in the background while you drive.
Track the difference
Reset your trip computer and watch your average consumption (L/100 km) over your next tanks.
Our promises
No miracle claims. Just proof.
The fuel saver market is full of blinking plugs that do nothing. Here's how we're different.
Test data per car
We publish results by car model, so you can see the numbers for cars like yours.
Certified, openly
Certification documents go on this site as soon as they're officially issued.
Cancel anytime
Change your mind before your pre-order ships? Full refund, no questions.
Fits or refunded
If it doesn't work with your car, you get your money back, return shipping included.
30-day returns
Not happy after it arrives? Send it back within 30 days of delivery.
2-year warranty
Every device is covered against defects for two full years.
Fuel Saving Guide
Save fuel starting today
First production run
Be first in line.
Reserve your device now. We'll keep you updated by email, and you can cancel for a full refund until it ships.
Pre-order now