Ask Honest John

Most recently answered fuel economy questions
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...
I need a large, economical and low tax group six seater. The car must have a low tail gate with the possibility of having three child-car seats across the back and feature sliding doors. Any ideas?
We are looking to replace our old Volkswagen Golf Plus, which we love to drive. The problem is we need a bigger boot and better fuel economy. We'd prefer chain driven as opposed to cambelt. We have £12,000...
I'm looking to buy a used seven seater: it must be reliable as well as economical to run (fuel, insurance, road tax). What would you recommend?
I have recently purchased a new Mazda 6 2.0-litre Sport Nav Tourer 165PS petrol model. I am delighted with this car and must take issue with your colleague Andrew English who commented that he found the...
I am looking for a new car that is simple, economical and reliable. I am very disillusioned with new designs and want something that will be basic and practical. What do you suggest?
I'm thinking of buying a Vauxhall Insignia VXR, can you tell me what it is like to own and run?
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...
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?
A local company has offered to remove the DPF from my Golf estate, reprogram the ECU and leave it looking identical underneath. They claim better mpg and power and, obviously, no blockages caused by short...