Tank Saver plugs straight into your car's OBD-II port and optimizes how your engine burns fuel — cutting consumption by up to 15% while boosting performance. No wiring, no app, no mechanic.
Proven savings for real drivers
Average reduction in fuel consumption
Average horsepower increase reported
Driving distance to fully calibrate to your engine
Tools required — plug-and-play OBD-II install
Real-world proof, verified on the dashboard, not just on paper: we tracked average fuel economy before and after installing Tank Saver across a fleet of test vehicles. Drivers saw a real, repeatable jump in average MPG — the kind you can watch tick up on your own dashboard.
Aligns and plugs directly into your car's OBD-II port — no tools, no wiring, no mechanic. It reads and remaps fuel-injection data as you drive.
Works with most gas and diesel vehicles equipped with a standard OBD-II port, across major manufacturers.
Remaps fuel maps for efficiency — the same idea professional chip tuners use, shrunk down to a plug-in box, with lower emissions as a side benefit.
Tank Saver reads your engine's fuel maps through the OBD-II port and remaps them for efficiency.
Find your car's OBD-II port — usually under the steering column.
Align and plug Tank Saver directly into the port. No tools needed.
Tank Saver starts learning your engine's fuel maps as you drive.
After ~200km it's fully calibrated — and the savings show up at the pump.
"After testing dozens of plug-in tuning boxes, Tank Saver is the one I recommend to customers who want real savings without touching their wiring. It reads the ECU safely and remaps for efficiency — most drivers notice it by their next fill-up."
4.7 ★★★★★ · 2,830 reviews · 85% recommend Tank Saver
Here's everything you've been asking about LifeGauge Tank Saver.
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LifeGauge
10199 Dean Drive Manassas,
VA 20110
Contact Us: (888) 863-6654 — English only
Outside the US: +1 (571) 771-2774 — English only
Email: [email protected] — all languages welcome