Ask Honest John

Most recently answered poor fuel consumption questions
I bought my X-TYPE Jaguar 2.5S in 2005, and have had total reliability since. It's a delightful car to drive except for the four-wheel drive system, which gives horrendous mpg. In the near future, I will...
I recently bought a brand new Hyundai i10 1.2. I've done 1100 miles so far and I'm really disappointed with its fuel consumption. It's getting 40-43mpg. It should be 50mpg urban and over 60mpg combined. I...
I know you have reservations about the economy of the VW 1.6 TDI. I have now covered just over 30,000kms [19000 mls] and have averaged 62.3 mpg. Although I do very little driving in heavy traffic I use...
I have a SEAT Ibiza 1.2TSI DSG which I bought new in March for this year and has now completed 1,000 miles. Fuel consumption is hovering around the 30mpg mark (and not improving with milage) which I...
Three weeks ago I bought a 10-month-old Mercedes-Benz B160 auto from a Mercedes dealership with 10,000 miles on the clock. I have been depressed by the high fuel consumption. I am quite a conservative...
Three years ago we bought a Vauxhall Corsa Design 1400 automatic. We like the car but we are not happy with the fuel consumption. The manual says it should do 330 miles on a full tank but our car only...