Ask Honest John

Most recently answered diesel engines questions
My Lexus LS diesel has covered 83,000 miles and is trouble free, but my only concern is lack of power and poor economy (30-35 mpg). I'm considering having it re-chipped, would this be a good idea?
I am interested in buying an Audi A4 Avant diesel. It seems that my budget should buy me a 2008 or 2009 car depending upon the mileage. I'm told that 1.9 TDI engine is very long lived, but that the early...
I'm looking to upgrade my 200,000 mile Volkswagen Golf GTi to a more sensible family estate/MPV, I have around £20,000 to spend. I will be doing around 12 - 14,000 miles a year and the new Renault Megane...
I plan to buy a diesel powered motorhome for use mainly between April and September. What advice do you have regarding lack of use during the winter period when I would prefer to kept it off road and...
My son needs a new car and is considering buying one with high mileage. He’s seen a diesel Volkswagen Passat on a 2004 plate with 145,000 miles on the clock. Can you tell me if this model has any known...
I want to buy a used Ford S-Max, but am confused by the choice of engines. Which diesel engine would you recommend?
I have an ageing Vauxhall Vectra 2.6 V6 estate. The car is 13 years old, with 186,000 miles on the clock and I need to replace it. I need a good motorway cruiser, good comfort, automatic, and with cruise...
I have the chance to buy a 2010 Audi A3 2.0 TDI with 5000 on the clock. The owner has emigrated and the car has not been driven regularly for some time. I travel 6000 miles a year - would you foresee...
I’m in the process of replacing my Ford Transit and really like the Volkswagen Transporter. Can you tell me which engine is best?
I’m thinking of buying a Vauxhall Movano, but can’t work out if I need front-wheel or rear-wheel drive? Also, which engine is best?