My C5 2.2Hdi achieves a miserable 36 to 39 miles per gallon, is this normal?. The car was first registered in January 2004, and has 30K miles on the clock. Whilst I tend to drive a bit quickly, I'm no boy racer, and do very little urban mileage (mostly A-roads). I've mentioned it to the dealer, during servicing, but they offer no explanation, but concede that it is "a little high". My last car was the 2.0 Hdi 110bhp, which regularly returned a more reasonable 46 to
50mpg. Any advice would be appreciated.- posted
18 years ago