Ask Honest John

Most recently answered diesel engines questions
I have owned a Skoda Octavia Combi 1.6 Mpi from new in 2006. I have covered 95,000 miles and I have been offered a reasonable trade-in to upgrade to a new (current model) Skoda Superb Combi 1.6Tdi Ambition...
I run a 27-year-old Citroen BX diesel but it is now very frail and parts are a problem. What alternative, reliable old diesels would you recommend for the home mechanic on a budget?
My 2010 BMW 3 Series diesel has done just over 30,000 miles and the engine function light (Orange) is displayed intermittently. My Independent Garage has run a full diagnostic test and is not really sure...
I'm looking to buy a diesel; mainly for the long distance drive I usually do and the tax rates. However my friend recently told me that diesel cars have received a huge backlash in publicity. He also...
I have just ordered a Skoda Octavia 1.2 petrol. The car has a stop-start system fitted for economy, but surely it is good practice to let a turbo engine idle for a short time to allow the turbo to cool?...
My Ford S-Max has a diesel leak from what I believe is the fuel injector manifold. It sits in the middle of the engine and six silver metal pipes come off to feed the injectors and the top has three ridges...
I have a 2004 Peugeot 206 SW with a 2.0 HDi engine. It has 72,000 miles on the clock, mostly on long motorway trips, and has been maintained according to its schedule. Do you think it worthwhile changing...
I was servicing my Ford C-Mas 1.6 diesel the other day and noticed the end of the turbo spindle has about 1mm of play. The car has done 75,000 miles and has been serviced with OEM parts all its life and...
I'm after a cheap family estate or hatchback to get a dog, kids and and pram into. Ideally, I'd like a diesel Ford Mondeo, but only cover 24 miles a day. What do you suggest I buy? I have £3000 to spend.
My Vauxhall Corsa 1.3 diesel has stated blowing blue smoke on start up. The exhaust usually clears after a few minutes, under acceleration, and the car drive fine. I've also had the injectors checked,...