I currently have almost 2,000 miles on my car and I noticed that the trip computer is very optimistic as to MPG. The trip computer shows about 24.5 or so while the actual mileage is around 21.8 to 22.1.

I was just messing around with the Instrument Panel Menu when I noticed there is an option for English and English (US) under the Instrument Display > Language setting. I can't find anywhere in the owners manual what each option actual does. My current setting is English (US) but I am thinking of trying English only, and see if the MPG is closer to actual.

Does any one really know what these setting change, if anything?

 

English - US is for American cars. XJL had a separate feature for different languages and some of us had issues with voice control not functioning because we didn't have British accents. Not positive that's what it is, but pretty sure it's the same across these cars.

 

1 US gallon is approx. 3.8 liters
1 Imperial (UK) gallon is approx. 4.5 liters (litres?)

Gallon - Wikipedia, the free encyclopedia