Why is the fuel economy on my Ford Transit Custom declining?

I've noticed that my Ford Transit Custom is not getting the same fuel efficiency as it used to. Is there something wrong with my car or is there something I can do to improve the fuel economy?

Amber, have you been keeping up with regular maintenance on your Transit Custom? Sometimes simple things like replacing air filters and getting tune-ups can greatly improve fuel economy.

It could also be related to your driving habits. Are you accelerating and braking smoothly or are you frequently speeding and slamming on the brakes? Aggressive driving can greatly impact fuel efficiency. Try driving more conservatively and see if that helps.