What the hell is going on my MPG has gone up

[chungE]

It's due to the new V-Power that we been using!

[Pullafacial]

Fairly sure i've had a split DV for the past week and since then my MPG has increased from about 31 to about 36 on the same journey if that helps at all.

Steve

[john_o]

funnily enough , Ive noticed the same thing , decrease of fuel consumption of about 3-4 MPG (from 28 ish up to 33 ish MPG).
less cold start cycle I would presume as others have said, but needs to be around 10 deg C or more to have noticed the difference

[Kinbin]

the ECU is a neural network... it learns.... its brainy.

by taking the car out on a prolonged motorway journey, the predominant driving posture applied during the journey is kinda imprinted into the ECU.

Suppose you hand your "pocket rocket" to your SO (aka significant other) for mild drives to the neighbourhood store, tesco, and to tea for a week, you will experience the definitive difference with a limp rocket when you get your car back.