Ask Honest John

Most recently answered fuel economy questions
I have a 2019 Honda CRV 1.5 AWD with 11,000 miles, full service history and not due a service until May 2022. I had been averaging around 34/33 mpg until recently. My fuel economy has dropped to 28/26...
I've just bought a 2013 Ford Focus Estate 1.0-litre EcoBoost Titanium. It is giving me about 33mpg, when the advert for urban driving says it should be giving over 47mpg. On the motorway at 70mph it also...
I have a 15-plate Honda CR-V 1.6 diesel. I still want a diesel and like the elevated driving position but need something that will deliver mid 50's+ real mpg. The budget is £20k. What would you recommend?
Is there a rule of thumb about how much less efficient a plug-in hybrid is when the battery runs out compared to a combustion engine equivalent? For example, if a conventional petrol or diesel model did...
With the coming of electric vehicles, wouldn’t it be better to start referring to all vehicles economy as MP£ or Miles per Euro as standard rather than mpg? As an example, my Skoda Fabia Estate diesel...
Are the mpg figures for the Jaguar F-Pace petrol plug-in believable? How are they calculated?
Do you have a top 10 or similar of most economical cars? It would be nice to see a list that would have specific engines included, i.e. Ford Focus 1.5 diesel.
What motorhomes see the best fuel economy?
What’s the best car for real-world economy on a 130-mile round trip commute.
Can you please tell me what the mpg is for a Honda CV-R 2.0 4WD?