Increase Efficiency
Supports fuel optimization and may help drivers save up to 15% on fuel consumption.
OptiFuel Energy Saver is a small plug-and-drive OBD2 device built to support better fuel efficiency, smoother performance, and lower emissions for petrol and diesel vehicles from 1996 onwards.
OptiFuel connects to your car's OBD2 diagnostic port and is designed to communicate with the vehicle ECU. After approximately 200 km / 150 miles of driving, it learns your driving habits and adjusts fuel injection, timing, and combustion parameters for more efficient driving.
Potential reduction in fuel consumption, depending on vehicle, roads, and driving habits.
Tool-free installation through the 16-pin OBD2 port under the dashboard.
Compatible with petrol and diesel vehicles using OBD2 / EOBD protocols.
Money-back guarantee and easy returns handled by the official seller.

Made for everyday drivers who want an easy plug-and-drive way to support efficiency without tools, batteries, maintenance, or ongoing costs.
Supports fuel optimization and may help drivers save up to 15% on fuel consumption.
Designed to help the engine run smoother by adjusting around driving style and vehicle behavior.
Plug it into the OBD2 port, reset it, wait briefly, and drive as usual.
More efficient combustion may reduce emissions for a cleaner driving experience.
Installation takes less than 2 minutes and requires no mechanical knowledge.
Turn off your engine, locate the OBD2 port under the steering wheel, and plug OptiFuel firmly into place.
Turn the ignition to the first position without starting the engine, press the reset button for 5 seconds, and wait about 30-54 seconds.
Start your car and continue driving. OptiFuel learns your habits over about 200 km / 150 miles and adjusts itself over time.
Read real customer experiences and discover how OptiFuel Energy Saver helped improve fuel efficiency, driving performance, and savings naturally.
Chicago, IL
"I was honestly skeptical, but after about 3 weeks I can clearly feel the difference at the gas station. Installation took less than 2 minutes - just plug it in and you're done. My car is noticeably more fuel efficient now."
San Diego, CA
"Bought this for my husband who drives a lot for work. He says fuel consumption has noticeably dropped since installing OptiFuel. Shipping was fast, installation was effortless."
Denver, CO
"OptiFuel has been a great upgrade for my SUV. The engine feels more powerful, and I've also gained about 5 extra MPG. Installation was quick and didn't require special tools."
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Answers based on the supplied OptiFuel product information.
OptiFuel is a small plug-and-drive device that connects to your car's OBD2 diagnostic port. It is designed to communicate with your ECU and optimize fuel injection, timing, and combustion parameters after a learning period.
Most drivers may see savings of up to 15%, depending on vehicle type, driving habits, road conditions, and calibration over time.
It is described as compatible with petrol and diesel vehicles manufactured from 1996 onwards that have an OBD2 port.
Turn off the engine, plug OptiFuel into the OBD2 port, turn ignition to the first position, press reset for 5 seconds, wait about 30-54 seconds, and start your car.
No. Once plugged in, there are no software updates, servicing, or ongoing costs listed.
Orders are listed as shipping within 48 hours of confirmation, with tracking details sent by email after shipment.
Product: OptiFuel OBD2 Fuel Optimization Device
Compatibility: Petrol and diesel vehicles from 1996 onwards
Fuel savings: Up to 15%
Calibration: Approx. 200 km / 150 miles
Time: Under 2 minutes
Connector: OBD2 16-pin male connector
Power: OBD2 port, no batteries
Voltage: 12V DC
Size: 50 x 43 x 25 mm; Weight: 26 g