Diesel Economy Remapping
for easier, torque-rich driving
A diesel remap adds torque low in the rev range, so the car pulls harder at lower engine speeds, which can help economy when you drive gently.
- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Overview
Diesel Economy Remapping across the UK
Diesel engines make their performance through torque. A remap adjusts injection quantity, rail pressure and turbo boost so that torque arrives earlier and stronger. In everyday driving that lets you use a higher gear at lower revs, which is where the potential for better economy comes from.
Economy depends heavily on how you drive. A driver who uses the extra power often will not see a saving, which is why we describe economy as a potential benefit rather than a promise. Across the 965 diesel engines in our catalogue, a stage 1 remap adds an average of 34 bhp and 73 Nm.
Who it suits
- High-mileage drivers and motorway commuters
- Drivers who tow or carry loads
- Anyone who wants a more relaxed, torque-rich diesel
The process
How it works
- 01
Tell us about your vehicle
Search your engine or request a quote with your make, model, engine and registration.
- 02
We confirm the details
We contact you by SMS or call back, check the vehicle and confirm what is possible.
- 03
Your local site books you in
Your local Remap Experts site arranges the work and answers your questions.
- 04
Remapped and tested
The work is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
What to expect
- Stronger pull from low revs and less need to change down
- Easier overtaking and hill climbs
- Potential economy improvement if you drive gently
Worth knowing
- Diesels with a particulate filter benefit from occasional longer runs so the filter can regenerate.
- A remap does not repair an existing DPF, EGR or injector fault; those should be diagnosed first.

Ready for diesel economy remapping?
Send your vehicle details and we will reply with what is possible and a price.
Learn more
Related guides
- 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
- 5 min read
Diesel vs petrol remapping
Why the two respond differently and what to expect from each.
- 5 min read
DPF and EGR faults: diagnosis, cleaning and repair
Why they fail, what you can do, and why removal is not the answer.
Questions
Diesel Economy Remapping: your questions
How much fuel will I save?
It varies. Drivers who use the extra torque to drive in a higher gear may see an improvement, but we do not promise a specific saving.
Is it suitable for a high-mileage diesel?
Often yes, provided the engine is healthy and serviced. We check the condition first.
Does it affect the DPF?
A lawful remap leaves the DPF and EGR in place and working.
Explore
Other services
- Diesel Engine RemappingPerformance remapping for modern turbo diesels, written for your exact engine.
- DPF and EGR Fault Diagnosis and RepairDiagnosis, cleaning and repair for DPF and EGR faults, in line with current road-legal standards.
- HGV and Truck RemappingRemapping enquiries for trucks and heavy commercial vehicles, handled individually.
- Light Commercial and Van RemappingMore torque for loaded vans, from a calibration written for your engine.
- Petrol Engine RemappingSharper response and stronger acceleration from your petrol engine, written for your exact engine.
- Rolling Road Dyno TuningPower and torque measured on a rolling road, so results are checked rather than assumed.
- Fleet RemappingA single point of contact for remapping several company vehicles.