Engine tuning and fuel consumption

Fuel consumption depends more on the driver than on the vehicle. Someone who already drives very economically may not notice a significant difference, whereas a driver who is heavier on the accelerator pedal will see consumption drop more quickly.

To achieve the same acceleration after remapping as before, less pressure on the accelerator is needed to reach similar acceleration and RPM as in the original state. Accelerating more gently uses less fuel, since consumption is directly related to the load demanded.

Consumption also depends on the engine type, the engine management and the selected tuning stage. A reduction in fuel consumption is more likely on a diesel vehicle than on a petrol one.

It is therefore impossible to guarantee lower fuel consumption, but it is not uncommon to see a decrease.