First 1500 miles I've been averaging c 19 MPG in the GTS (about 80% town driving) then suddenly, on the last tank got 24.7 MPG. No difference in driving style or mix of driving and it was evident from the moment I drove off the forecourt. I haven't changed any settings have used the same V-Power Nitro from the same station so very perplexed about the sudden dramatic improvement in fuel consumption. Obviously I would be delighted if it continues and hoping it is just down to the engine maybe loosening up a bit but suspect I have inadvertently changed something and obviously would like to know what it is!
TIA