Incorrect tyre pressure will inflate fuel bills
Tyre selection has a huge role to play, especially in tillage farming. The importance of matching the tyres on your tractor to the work that it will be carrying out cannot be overstated.
Tyres are the conduits through which mechanical power is passed to the ground.
The efficiency of that power delivery depends on the condition and inflation pressure of the tyre.
Despite popular opinion, Michelin tests have recently demonstrated that over inflation can lead to more of a fuel drain in field conditions, especially in tillage applications.
Over inflation leads to the tyre leaving a deeper "footprint" in the field and more diesel is burnt in both the making of that footprint and in the tractor's attempt to pull out of a deeper rut than is necessary to maintain traction.
The increased fuel consumption in this case is because of a bigger rolling resistance.
On the other hand, too low a tyre pressure is also a drain on diesel because the energy required to move the tractor and its load increases above and beyond what is required for good ground flotation practice.