Prior to Service

More by luck than judgement - the mileage on the car will be at almost exactly 18,000 as it goes for service. Had a long run today - and checked the consumption to see if it will be different after the service. Managed 38mpg average on the computer. I had recently pumped up the tyres.. and this seems to be a big factor if the car will get to 38 or stay around 36.