How do manufacturers calculate their official fuel consumption figures?

With regard to manufacturers' fuel consumption figures for their vehicles, I fully agree with comments made in your columns about them being unachievable. However, where I feel they are of value is in...

Juke fuel tank range - what can I do about this?

On a 255 mile motorway run starting with a full tank, getting better than 40 average mpg, when we near our destination the instruments show a near empty tank and show 40 miles to empty tank. The tank capacity...

BMW 3 Series or Audi A3?

I’m in the process of buying a used car and have been offered a 2013 BMW 320d for £26,850, with leather, sat nav and 6000 miles on the clock. Do you think this is a good deal, or should I buy a Audi A3...

Does the new Ford Focus EcoBoost only return 40mpg?

I am considering buying a Ford Focus with a 1.0 EcoBoost engine, which has been engine of the year for two years running. However, the fuel consumption figures on your website and various road tests show...

Why does Shell fuel give better mpg in my Subaru Forester?

For the last three or so years I have dieseled up my Subaru Forester at our local Jet station. Recently, I had to do it at a Waitrose where I filled up with Shell. My average mpg on Jet had been around...

Can you suggest what might improve the fuel consumption on my '06 Honda Jazz?

Can you suggest what might improve the 33 miles per gallon I'm getting with my '06 Honda Jazz, 1.4, purchased 12 months ago. True I only do fairly local journeys in the main but would like to get a better...

Can you suggest a BMW with good fuel economy?

I'm looking to replace my 2003 Nissan Primera diesel estate and want something with 50mpg+. I've test driven a BMW 116d SE and like eight speed automatic box, potential economy and drive, but find it a...

Buying a used Ford Mondeo - which model has the best fuel economy?

I am looking for a used Ford Mondeo diesel estate with the best fuel economy. I’m considering a 2010 model, with a 2.0-litre engine. What do you suggest?

Buying a powerful car, but want good MPG - what do you recomment?

I want to buy a powerful car, but want good fuel economy and a comfortable ride. I currently drive a BMW 1 Series, but am fed up with the high cost of tyres and hard ride. I cover 25,000 motorway miles...

How do the windows and air conditioning affect fuel economy?

Which has the least effect on fuel consumption: having the air conditioning on or opening a window?