Am I reading this right ?Is it possible to somehow adjust or calibrate the Maxidot MPG readout ?

No it's not a mis-print! The majority of alterations I've made for people via VCDS have been 10-15% over optimistic.

The best way to do is to calculate a couple of tanks worth via the brim-to-brim method, and also reset the MPG computer read-out for each tank. You can then see what the difference is, convert that to a percentage and then alter the settings with VCDS.

More info on this process in this thread: http://www.briskoda....er-calibration/

I have a 20 mile commute to work. I get on average 46mpg on the way there and 52mpg on the way back. Try to drive the same everywhere - which is slowly(about 65mph on dual carriageway).

The thing that really confuses me is why do I get higher figure when the weather is good?? For instance if the weather is good - 22 degrees + and the sun is out I get about 5-8mpg more than usual and that's with aircon on. In winter i will only get about 42mpg on the way to work? I thought engines worked better with a cool air intake??

Any ideas

For motorway driving I get a precise 50mpg. The magic rpm is 2100. No special diesel. Pace and frugality very happy

The thing that really confuses me is why do I get higher figure when the weather is good?? For instance if the weather is good - 22 degrees + and the sun is out I get about 5-8mpg more than usual and that's with aircon on. In winter i will only get about 42mpg on the way to work? I thought engines worked better with a cool air intake??

If the weather is colder, the air is generally denser. Your ECU will register that and increase fuelling to suit. So the car will be quicker in colder weather, but use more fuel.

Also in colder temps, the engine will take longer to heat up and reach optimum operating temperature. So it burns more fuel during this stage.

If the weather is colder, the air is generally denser. Your ECU will register that and increase fuelling to suit. So the car will be quicker in colder weather, but use more fuel.

Also in colder temps, the engine will take longer to heat up and reach optimum operating temperature. So it burns more fuel during this stage.

And the heater matrix will be sapping coolant heat to warm the car - heat=burnt fuel however you look at it :-)