Ask Honest John

Most recently answered mpg questions
My wife drives a 1990 Volkswagen Polo C with 88,000 miles on the clock. It has no servo, no power steering, a stiff clutch and a grinding gearbox. It still keeps passing the MoT, however. She is coming...
What's the catch with the Lexus IS250? Servicing cost? Realistic MPG?
My BMW 116i SE is now five years old and I am looking to replace it. Before I look at another BMW 1 Series, which I have no complaints of, is there something else to consider? I do about 8000 miles a year...
The fuel economy of my 2007 Audi A6 2.0TDI Avant Multitronic has always been poor from new at 34mpg, rising to 40 in mid 2011 and now having dropped steadily back to 33mpg. Most of my mileage consists...
The debate has started again as to whether using the air conditioning is more fuel-efficient than having the windows down. Which is correct?
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...
I have bought a 2009 Hyundai i10 auto 1.2-litre I am 72 years old drive very carefully (advanced driver) no mater how careful I am the range of the i10 is in the region of 260 - 290miles on 35L of petrol. What...
Please note the 67.3 mpg combined you show and Kia show in the information for this model I believe is not attainable in normal driving if there is such a thing. I did a test as recommended by the garage...
I own a Ford Focus 05 1.6 90bhp, I recently changed the battery and mpg has risen via EMC can I get it back to the lower figure by reconecting battery again, or is it a dealer issue. Also do you know if...
I run a Ford Mondeo 1.8 estate (Dec 2005). It has done 55,000 miles. I cover around 5,000 miles per year - much local but with 300 mile motorway journeys three or four times a year. I really like the car...