If you cover serious miles, a fuel-optimise remap is designed to do one thing: reduce what you spend on fuel. By improving low-down torque and efficiency, the engine does the same work with less effort — and you with a lighter right foot.
More torque lower in the rev range means you can hold a higher gear and use less throttle for the same progress. On a suitable diesel driven sensibly, savings are often quoted around 10%, depending on the engine and your driving.
Motorway commuters, tow cars and working vans see the strongest return — the map pays for itself over time. Town-only, low-mileage cars benefit less, and we'll tell you honestly if the economy case is weak for your situation.
We quote the expected economy figures for your exact engine using real Viezu data — try the gains calculator with your reg to see them. The Merlin Blend is also available if you want some extra power alongside the efficiency.
Tell us your vehicle and what you're after — we'll come back with honest figures and a price. Mobile service across our local area, or visit us in Chesham.