Different reading on Vista & Xp home. On Vista I get a high MPG 55.7 to 44.0 on XP home I get 46.3 to 36.6. Tried signing out and in just in case this is why but still the same.
Hi Graham7, make sure that you have the same unit selection across all machines. In the upper left corner of every page you'll see "US | UK | Metric". Your selection there will affect the numbers you see on the page. If you're in the US, make sure that you have "US" selected everywhere.