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  Should I have my Lexus re-chipped? 21 Oct 2013 (Ask HJ)
  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...
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  Should I buy or replace my S40? 12 Mar 2013 (Ask HJ)
  I now do fewer than 6000 miles per year (local and annual 1000 miles overseas), mostly alone, and do not depend on the car for commuting. It has very little...
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  Poor fuel economy in my 2002 Fiesta Diesel 24 Sep 2012 (Ask HJ)
  I commute to London 3 times a week and it's a 220 mile round trip, 90% of my trip is on motorways and I never go above 70mph. Now I know my car isn't new...
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  Norwegian would 12 Mar 2010 (Ask HJ)
  I once lived in Norway and I am sure there was an additive to put in diesel to lower its freezing point. Do you know if it can be bought here?
• Diesels 'pros an cons' 28 Mar 2019 (Forum)
  You should purchase a diesel vehicle if you want to save money in the long term. Immediate costs may be a little more expensive as diesel vehicles often come with a higher price tag. There are also style issues with diesel cars as well.
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  Is it a common problem for diesel fuel to get into the engine oil while regenerating the car? 31 Dec 2016 (Ask HJ)
  My 2016 Volvo V70 with 7000 miles, three months post first annual service, put up a message saying it was due an oil change and at next start up showed...
• N/A - Esso fuel ( NOT another witch is better argument ) 26 May 2014 (Forum)
  Pulld in to a Esso petrol station yesterday to fill up and noticed on the pump marked supreme 97 it said vapour recovery.   It didn't have this...
• Fuel prices in France 22 Jan 2007 (Forum)
  I found this site earlier today. It gives a daily update on the best gazole (diesel) and essence 95 (petrol) prices all over France. In French, but it's...
• Future Diesels? - Diesel Repreive? - Soot at the end of the tunnel 13 Dec 2019 (Forum)
  Don't think its in an engine yet, but the hope/speculation is that it could reduce the need for / load on the DPF. Gas co-combustion also reduces diesel emissions and has been used in operational engines (was poipular in Australia) but seems to ibe more complex. 
• Jaguar X-Type diesel - jaguar x type 20ltr diesel not starting 4 Jun 2018 (Forum)
  Hi I have a jaguar x type diesel that wont start it turns over ok but just wont fire its I've only had it two weeks and was driving fine its apparently had new injectors new fuel filter when I bought the car any ideas please I'm pulling my hair out.
• Most economical way to drive a diesel? 2 Jun 2007 (Forum)
  Having recently read in the paper and Auto Express about some chap who devised a way to drive petrol cars more economically, by accelerating flat out upto 2000 rpm in each gear then changing up, I was wondering what the most economical way to drive my diesel car (1.5dci Megane)? The article in Auto Express stated that because of the differences in the fuel injection systems between petrol and diesel, his method didn't work with diesel engines.
• Diesel or Petrol???? 21 Jan 2007 (Forum)
  Hi, Can you tell me the best car/engine/fuel for me. I have a diesel 2.2 hdi Citroen C5 at the moment, and also have a caravan that I use in total 4 weeks a year (travel to europe for summer holiday) the C5 pulls it lovely but do I need a Diesel?
• Making a monkey of the diesel myth 29 Sep 2005 (Forum)
  Interesting article in the weekend press where the fuel economy of a 1.1 litre petrol Citroen C1 was compared with a 1.4HDI diesel C1 on a complete lap of the M25 at 50 mph (traffic & cameras permitting). Contrary to expectations the the diesel car achieved 82.7 mpg at a cost of £6.37, whilst the petrol engined motor returned a remarkable 85.5 mpg at a cost of £6.10.
• Peugeot 309 (1986 - 1993) - 1989 1.9 possible fuel filter problem 8 Feb 2009 (Forum)
  Then I stupidly put petrol instead of diesel in one night. So it was cleaned out at a garage & they changed the fuel filter but when I tried to start it to leave the garage, it wouldn't start! And several times after that my indicators wouldn't work.
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  Is there a known problem with Volkswagen Passat fuel injectors? 16 Aug 2010 (Ask HJ)
  Is it true that there have been a substantial number of Volkswagen Passat fuel injector failures? If so, does this apply to all Volkswagen dealers?
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  I filled my diesel Jaguar XF with petrol - do I need to have the whole fuel system changed for £7,000? 28 May 2011 (Ask HJ)
  I filled my diesel Jaguar XF with unleaded fuel. I drove it 400 metres to my house with no problem. In the morning I had difficulty starting it. When it...
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  Unwarranted behaviour 3 Apr 2010 (Ask HJ)
  I have a 2005 Renault Grand Scenic 1.5 Diesel car that failed a year ago. The Renault Garage replaced the complete fuel injection system free of charge....
• Peugeot 307 SW - Fuel prime? 20 Jan 2018 (Forum)
  Turning the key to the second position I do not hear a pump running in the fuel tank as expected, but cannot remember if it ever did before I ran out of fuel. thanks for looking, Mike.
• Audi A4 Avant - Dented fuel tank 7 May 2014 (Forum)
  Hi - mine is a 2008 model, a4 avant 2litre diesel. All running fine and done 75k miles. Cambelt was changed last week and the guy said there was a dent in the fuel tank, not huige but it had been mishaped. He suggests it may be a blocked breather.
• Mercedes Benz Vito 123 kombi (2005 - ) - Vito 04 111 CDI - Fuel consumption poor 23 Feb 2009 (Forum)
  hi i have a new shape 04 plate merc vito 111 cdi compact van and i am having trouble with the fuel consumption as it is only doing 26-27 to the gallon @.91p per litre and 370 miles to £60.00 of diesel and that is either on the motorway or around town does anyone own a new vito with this fuel consumption or does that sound ok,i look forward to your views