Question: Fuel consumption of the ST Mk8

Hello guys,

I recently bought my Fiesta ST Mk8 facelift model and I love it. There is just one thing boggling my mind: On a lot of forums I read people average >34 MPG (<7 l/100km) and I really can't replicate that with mine. I drive though some cities, a lot on the autobahn and also through rural areas so there's a bit of everything. My average fuel consumption is about 29-30 MPG (8 l/100km). This leads me to wonder how people can achieve such a low average fuel consumption. So my question is: What's your average fuel consumption and how do people achieve this low of a fuel consumption?