Ask Honest John

Most recently answered fuel economy questions
Can I reject a used car if the fuel economy is very different from what I was told?
I'm looking for an estate car/van-like car that would give me a big boot space. I need 6.25 feet in length and about 4 feet wide, to drive to Italy and back, but at a low cost - no glamour needed.
I need to change cars as I now travel further to work each day. I'm looking for something that will do 60mpg, what do you recommend for my £5000 budget?
Why do summer and winter mpg figures vary?
I've recently purchased a Volvo S40 2.4-litre petrol. What mpg should it get? I'm currently getting 26mpg and 30mpg on a run out.
The Mercedes-Benz GLE 500e Hybrid specs suggest we will get 76.4mpg. Is it true?
I have a Jaguar XE, nearly two years old, which averages around 39mpg on the computer set for long periods. 2000 miles ago I decided to check real mpg by checking fill-ups against mileage and was surprised...
I have an Hyundai Ioniq, which I've run exclusively on Shell fuels for the 5000 miles that I've had it. I was getting 60-62 mpg on the regular stuff, then put a tank of the V-Power in and got 64 mpg. I...
I have Vauxhall Crossland X 1.2T 130PS and intended to use Shell V-Power fuel to keep the components as clean as possible. After reading the owners manual, it recommends 95 Ron - 98 Ron. As Shell V-Power...
Following your advice five years ago, I purchased an old Range Rover Sport - which I loved and was very practical with a reasonable amount of off road use. Rather rashly, but sensing some expensive repairs...
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