Ask Honest John

Most recently answered mpg questions
Like your reader last weekl I acquired (on a lease) a new Hyundai Tuscon Hybrid in January 2025. I have done 6500 miles (varied driving) and have kept a spreadsheet of my MPG and brim the tank each time...
I have a 2011 Nissan X-Trail I have owned since new. It's approaching 130,000 miles and on long journeys I've noticed my MPG has dropped considerably. Is it worth getting my engine deep cleaned by one...
I am looking to buy a small petrol car which has a big range. I have family who live in Currie, Edinburgh, approximately 400 miles away from where I live. I am looking for a small car that can do this...
How are the figures calculated for a Lexus NX 450 PHEV - that has a published mpg of 256.7mpg?
How much better is real mpg for a mild hybrid that a similar petrol car?
I have a Vauxhall Insignia and all seems mechanically sound with 68000 miles on the clock, a recent service and full service history plus new discs brakes all round. When I bought it I was getting around...
What large SUV that can tow 2500kg has the best MPG? Budget of £8000 and looking for the best economy and best spec large SUV.
I bought my new Honda Jazz from a main dealer in 2022. The main reason I decided to change from my previous three-year-old year old Jazz was the expected over 60mpg. For the first several weeks the car...
My daughter has a 1.2-litre petrol limited edition 2015 Vauxhall Corsa. Do you know of anyone who can fit a reversing camera to the existing screen on the car so we don't have to have an additional screen? Or,...
Can you please advise which of the largest size petrol vehicles available to purchase does the most miles per gallon?