How to accurately track and monitor your long-range fuel tank?
Author: Gary Westmoreland Date Posted:10 January 2022

Long-Range Fuel Tanks & ScanGauge: Accurate Fuel Monitoring for 4x4s
For many 4x4 enthusiasts, a standard 500km fuel tank just isn’t enough. Whether you’re exploring remote tracks, towing a caravan, or taking on long outback tours, the ability to travel further on one fill-up is invaluable. That’s why so many drivers upgrade to an aftermarket long-range fuel tank.
A bigger tank gives you more freedom, fewer refuels, and better cost control by choosing when and where to fill up. But there’s one big problem: your factory gauges don’t adapt to the upgrade. That’s where the ScanGauge comes in.
The Problem with Factory Gauges After a Tank Upgrade
Modern vehicles provide digital readouts like fuel level and distance-to-empty. But when you install a larger aftermarket tank, these readings become inaccurate because they’re calibrated to the factory tank size. The result: your “range” and “fuel used” displays are no longer reliable.
If you’ve gone to the trouble of installing a long-range fuel tank, chances are you’re planning serious travel — remote touring, long-distance towing, or extended off-road adventures. In those situations, accurate fuel monitoring is critical.
The ScanGauge Fuel-Based Trip Computer Solution
The ScanGauge solves this by letting you configure your fuel tank size in its setup menu. From there, simply enter your fill-up details when you refuel. The ScanGauge2 recalibrates your trip computer, giving you accurate digital readouts again — no matter what size tank you’ve installed.
Key Fuel Monitoring Functions
With the fuel-based trip computer, you can track fuel in two powerful ways:
- Tank Trip (Current Tank): See how much fuel you’ve used and how far you’ve travelled since your last fill-up. Perfect for monitoring economy and maximising every litre.
 - Tank to Empty: Get an accurate estimate of how much fuel remains and your approximate distance before refuelling. This is essential for remote travel where running out of fuel isn’t an option.
 
Both functions are displayed digitally on the ScanGauge2, offering far greater accuracy than analogue gauges and restoring the confidence you need for long trips.
Not Just for Long-Range Tanks
While this feature is invaluable for upgraded tanks, it works just as well on vehicles with standard factory tanks. As long as your vehicle is OBD2-compatible, you can configure ScanGauge to match your tank size and start benefiting from accurate fuel monitoring.
Beyond Fuel: Extra Features of ScanGauge
The trip computer is just one of the ScanGauge’s five key features. It also provides real-time digital gauges, performance monitoring, and diagnostic code reading to keep your 4x4 running at its best. Whether you’re tackling remote tracks or daily driving, ScanGauge offers features that save money and improve reliability.
Final Thoughts
Upgrading to a long-range fuel tank gives you more freedom — but only if you can trust your fuel data. The ScanGauge2 fuel-based trip computer restores accuracy, ensuring you always know exactly how far you can go. For touring, towing, or off-road adventures, it’s an essential companion.
Learn more about the ScanGauges today and take control of your fuel monitoring.
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