Good evening all, I have had my S TYPE 2.7 diesel auto for a couple of weeks now and I would like to know if the mpg trip can be reset so I can get a correct reading now I am using the Jag for work and I do 50 miles a day mostly motorway. The handbook says to always have the a/c and climate control on auto so it keeps the car at the correct temp and stops condensation building up. Can somebody confirm this or am I better to just use the heater as normal. The car is a real gem on the motorway , so easy to drive and it must be the most comfortable car I have had the pleasure to own. Thanks for listening, Gary. Proud Jag owner at last.