What exactly is FuelfixPro?

FuelfixPro is a compact OBD2 device that plugs into the diagnostic port found in virtually every car made after 1996. Once connected, its smart microchip reads your engine's ECU data in real time and automatically adjusts engine parameters to improve fuel combustion efficiency — so your engine does the same job using less fuel.

Is this just a gimmick? Does it actually work?

We get it — there's a lot of noise out there. FuelfixPro works by interfacing directly with your vehicle's ECU through the OBD2 port, the same port mechanics use to diagnose your car. It reads real engine data and makes real-time adjustments to optimise combustion. Thousands of drivers have reported measurable improvements in fuel economy, and we back every purchase with a 30-day money-back guarantee. If you don't see results, you pay nothing.

How is this different from other OBD2 devices I've seen?

Most OBD2 devices are passive — they just read and display data. FuelfixPro actively communicates with your ECU to optimise engine parameters for fuel efficiency. It's not a reader, it's an optimiser. The difference is in what it does with the data, not just what it reads.

Will it work with my car?

FuelfixPro is compatible with virtually all petrol and diesel vehicles manufactured after 1996 that have an OBD2 port — which covers the vast majority of cars, vans, and trucks on the road today. If your vehicle was made after 1996, it almost certainly has an OBD2 port (usually located under the dashboard on the driver's side).

Will it void my car's warranty?

No. FuelfixPro does not physically modify your vehicle in any way. It connects via the OBD2 port — the same port used by mechanics and dealerships for diagnostics — and does not alter any permanent settings. It will not void your manufacturer's warranty.

Does it work on electric or hybrid vehicles?

FuelfixPro is designed for petrol and diesel combustion engines. It is not compatible with fully electric vehicles (EVs). For hybrid vehicles, it will work with the combustion engine component but results may vary.

How quickly will I see results?

Most drivers notice a difference within the first 1–2 tanks of fuel. The device continuously learns and adapts to your specific driving patterns, so results typically improve over the first 150–200 miles as it calibrates to your vehicle.

How much can I realistically expect to save?

Results vary depending on your vehicle, driving style, and conditions. Based on customer feedback, drivers typically report savings of 10–25% on fuel costs. For an average driver spending £150–£200/month on fuel, that's a real saving of £15–£50 per month — meaning FuelfixPro pays for itself within the first month or two.

Do I need to do anything after plugging it in?

No. Once plugged in, FuelfixPro works automatically in the background. There's no app to set up, no settings to configure, and no ongoing maintenance required. Just plug it in and drive as normal.

Is there a money-back guarantee?

Yes — absolutely. We offer a full 30-day money-back guarantee. If you're not satisfied with the results for any reason, contact us within 30 days of receiving your order and we'll refund you in full. No awkward questions, no hassle.

Is this a one-time purchase or a subscription?

FuelfixPro is a one-time purchase. You pay once and own it forever. There are no monthly fees, no subscriptions, and no hidden costs. The savings you make on fuel are yours to keep.

How long does delivery take?

We dispatch orders quickly and aim to deliver within 3–7 business days depending on your location. You'll receive a tracking number as soon as your order ships.

Why is it discounted right now?

We're currently running a limited promotional offer at 51% off the standard retail price of $79.99 — bringing it down to just $38.99. This offer is time-limited and subject to stock availability. Once it ends, the price returns to full RRP.