FuelSync Pro Pro® | Official Store

FuelSync Pro is a neat little plug-in fuel saver that just slots into your car's cig lighter - and that's about it. It claims to cut fuel consumption by anything from 15% all the way up to 30% - no need to bother with any fiddly car modifications.

They say FuelSync Pro came from a company called FuelSync Pro LLC, based in Austin, Texas - and its a pretty handy thing to have, coming as it does in a 2-pack. You get one to keep in your main vehicle, and a spare for a secondary car or as a back up in case the first one conks out. And with gas going through the roof at 4 dollars plus a gallon in so many parts of the country, it's little wonder people are getting pretty excited about gadgets like this. Especially when you consider that for loads of American families, the car is chomping through 300 bucks a month - easy.

FuelSync Pro Pro is designed to make your drives smoother and more enjoyable - it helps with throttle response and acceleration. And because theres no complicated setup to worry about , its a great tool for all sorts of drivers, whether youve got a short commute or a long road trip ahead of you. And the best bit is that it works quietly in the background, so you dont even know its there.

But what's the real story? Beyond all the enthusiastic TikTok vids and the big promises, the real question is: actually does FuelSync Pro actually work? Well, we put it to the test - for 3 months we tested it in 4 different vehicles - gasoline, diesel, a standard sedan, and a full size truck - to give you the lowdown in black and white.