Hi,
regarding the idle,mine is exactly the same and always has been in my 12 years of ownership.I questioned it with a Rover specialist when I first got the car and was told it was normal.It has never caused me any issues.Also,I find the 1.8T quite heavy on fuel,particularly around town.It's a big heavy car with a lively engine so to be expected.Although I would expect 26-28 ish.
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