Ask Honest John

Most recently answered fuel economy questions
I am looking to buy a used small car for around £5000 that will last me for some years to come. I would like the best value for money and would be much more interested in reliability, fuel efficiency,...
My elderly parents need a new car. They have £7000 to spend and want a decent car that will do 60mpg. They do mostly short journeys, so only an older diesel without a DPF may work. Or a newer petrol...
I'm based in London, and since moving here I've generally gotten away with riding a 50cc Vespa, but would now like to get myself a car so as to get out of town on the weekends (Cornwall, Cotswolds, etc..). My...
My family is looking to buy a car, either new or second hand. We are looking to find the most fuel-efficient model possible. The car will be driven by my mum and driven quite regularly but mostly on short...
I have purchased a 2005 Ford Focus 1.6 automatic. However, it uses lots of fuel and I'm getting about 21mpg. Is this normal? And if not, what could be causing it?
I recently replaced old "Event" tyres with new Michelin ones on my wife's 2006 Volkswagen Golf diesel. On a regular round trip of 120 miles, her on-board fuel consumption has gone from over 60mpg to below...
What octane petrol should a new Golf with the 1.4 turbo engine use? My previous mkV 1.6 FSI had to run on 98 after burning out a nox sensor on 95/97. Is this still an issue on the new Golf?
My sister’s 2005 Ford Focus 1.6 is getting very poor fuel economy, about 24mpg on short trips and about 29mpg on long trips. I have fitted new plugs, air filter, oil and oil filter. I’ve also checked the...
I've got a maximum of £2250 to spend and am looking at buying a used Volkswagen Golf, Audi A3 or Ford Focus. I want a car that will be reasonably cheap to run as my daily commute is only about five miles....
I'm looking for a car to replace my 2002 Peugeot 406 Coupe diesel. I love the car for its looks and fuel economy, with a smooth rude and 50+mpg. I also like that, whilst being a coupe, it's also practical...