Ask Honest John

Most recently answered real mpg questions
I was interested in your correspondent RY of Peterborough's comments about diesel engines. After 10 years of driving new and nearly new Volkswagen Group diesels and experiencing many of the problems your...
I recently took delivery of a demonstrator Toyota Auris Hybrid T-Spirit, first registered in March 2011, which had 2200 miles on the clock. The advertised mileage is 70mpg, but I have only been able to...
I have owned two cars from new with trip computers, both of which were over-optimistic about fuel consumption. Typically in my 2008 Mondeo diesel I achieve 47mpg by doing brim-to-brim calculations. The...
We have had a 56 reg Passat TDI140 for 4 1/2 Years and it's always averaged 45-48 mpg winter/summer and alway run really well. There has just been a recall to replace the injectors and we now find that...
I subscribe to 'What Car'. The latest (July) edition has an impressive ad by Tesco singing the praises of the quality of their fuels, and I do note that Tesco have a close relationship with 'What Car'....
When asking for submissions of MPG figures you state: "Work out your average fuel economy over the last month. You can do this from your trip computer consumption meter average, or you can do it on a...
I wish to buy used saloon/hatchback. I have a budget of about £15,000 and I want a car of no more than three years old, max 20,000 miles, petrol, good spec, decent mpg, looks smart for a retired but still...
I have recently bought a Ford Fusion Diesel 1.4. It's one owner with 46,000 miles. I am only getting 43mpg on a combination of motorway and commuting journeys. How can I improve this?
Just bought a Lexus IS220d and I'm very dissapointed with the mpg, I'm only getting 24 mpg, but the official Lexus site says 35 mpg urban 55 extra urban 45 combined. What could be the problem?
Thank you for your sterling work. I do huge numbers of motorway miles and nearly never drive through towns. Simply: What is the best car for MPG for motoways only? Also, will cruise control help MPG,...
 

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