How can I improve the fuel efficiency of my Vauxhall Insignia?

I recently bought a Vauxhall Insignia and I'm looking for ways to improve its fuel efficiency. It seems like I'm constantly having to refill my tank and I could use some advice on how to reduce my fuel consumption.

One of the best ways to improve the fuel efficiency of your Vauxhall Insignia is to practice eco-driving techniques, such as smooth acceleration and deceleration and maintaining a constant speed.

You can also save fuel by regularly maintaining your vehicle, including regularly changing air filters, checking tire pressure, and ensuring your engine is running smoothly.

Another tip is to avoid idling your car for more than 30 seconds, as idling uses more fuel than restarting the engine.