Ask Honest John

Most recently answered turbo engines questions
I have read all the very high praise lavished on the new Ford three cylinder engine. In your opinion would the new Focus 1.0 125ps be a suitable car for me to travel 550 miles each week, mainly on motorways?...
Does your advice on turbo charged engines also apply to super charged engines? I am referring to leaving them idle for 10 seconds before driving off and leaving the engine idle for 30 to 120 seconds after...
I have recently purchased these two cars, both turbo diesel. As a first time user of diesel cars, have heard that before switching off the engine one has to keep it running for a couple of minutes. Is...
I understand that the new Volvo V60 is based on the Ford Mondeo. Having just purchased a new V60 I would be interested in knowing how much of the vehicle is Mondeo-based. Presumably the lauded Mondeo driving...
Is the new Ford 1.0-litre engine reliable? Have there been promlems so far?
The van turbo has failed after 9 weeks and 23,000 miles, I've been told it failed due to a lack if lubricant but the van had been serviced a week earlier and I'd driven over 350 miles that day before it...
I have heard that there is a known fault in the Volkswagen 2.0-litre turbodiesel engine, which I have in my 2008 Skoda Octavia, which causes it to cut out. Do you know about this and why there has not...
My wife would like a MINI Cooper S and I've been told that some were supercharged and others turbocharged. Which, in your opinion, is the better option? We will have about £7000 to spend.
Has a whistle when accelerating. Appears to be from the turbo - how concerned ought I to be with this? Disappears when easing off accelerator.
My 2002 E46 BMW 320d Sport which I have owned since new has now done 168,000 miles. It is always serviced at the correct intervals. The car is still on its original turbo. People told me this would fail...