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  Buying a fuel efficient family car 5 Mar 2011 (Ask HJ)
  What are the best, extra urban mpg, used family cars?
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  Where's my Vauxhall Vectra's fuel pump? 19 Aug 2010 (Ask HJ)
  Can you please tell me where the fuel pump is located on my 1998 Vauxhall Vectra please?
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  Fuel economy 4 Aug 2012 (Ask HJ)
  I have recently signed up to a 4year lease deal on a Fiat 500 Twin-air (2012 ) and have had the car for 3 weeks. I understand that the car has only completed...
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  Gastric ring 23 Jun 2011 (Ask HJ)
  I have recently purchased, for a bargain price, a Ford F350 American pick-up truck. It has a 7.3 litre turbocharged diesel engine. I use the truck for...
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  Will supermarket fuel damage my engine? 21 Aug 2024 (Ask HJ)
  I have read recently it is not good to use petrol from supermarkets as it does not have the same additives as regular garages and can lead to engine problems...
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  What is more fuel effcient - towing or hauling? 5 Jun 2023 (Ask HJ)
  What's the most fuel efficient way to move two tonnes of cargo, a light truck like a Daily or Sprinter or a trailer behind a Toyota Hilux or Isuzu D-Max?...
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  Should I change the fuel filter on my Volkswagen Lupo GTI? 1 Oct 2018 (Ask HJ)
  I recently bought a 16 year old Volkswagen Lupo GTI with a full service history. There's no record of a change of fuel filter - not even in the Volkswagen...
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  How can I refill a modern car with fuel can? 13 Jun 2014 (Ask HJ)
  I have always carried a reserve supply five-litre can of diesel on journeys in the remoter parts of the Scottish Highlands and Islands where there are...
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  Is my car’s MPG reading correct? 8 Sep 2013 (Ask HJ)
  Can you tell me if the average fuel consumption figure displayed by my car's on-board computer is correct? I’ve read a lot of reports that claim official...
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  Diesel engine clogged up after running out of fuel - how can I fix it? 18 Jul 2013 (Ask HJ)
  I ran out of diesel recently in my Ford Mondeo. I added more fuel, but the car keeps spluttering to a halt. I’ve put injection cleaner in and changed the...
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  Diesel engine fuel flush - was it necessary? 14 Feb 2012 (Ask HJ)
  My wife's Clio Extreme dCi 86 had its first MOT today, and the garage, without our authority, carried out a fuel flush on it, charging us £20. This they...
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  Stuttering Volkswagen T4 23 Mar 2011 (Ask HJ)
  I've been to Volkswagen garages, I've been to Volkswagen nuts, but I still can't find out why my T4 (1991 2litre petrol manual) stutters when in fifth...
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  Where's the fuel filter on my Nissan Almera? 6 Sep 2010 (Ask HJ)
  Please tell me where and what the fuel filter looks like for a new shape (2000) Nissan Almera 2000. I can see where three rubber tubes go to leading from...
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  Replacing the coil pack in my 2007 BMW 1 Series gave better fuel economy. 18 Jun 2010 (Ask HJ)
  I thought you may like to know of some problems with my BMW 120i M Sport 07/57. About 12 months ago the "stop/start" feature stopped working due to a faulty...
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  How can I improve my Hyundai Accent's fuel economy? 9 Jul 2010 (Ask HJ)
  How can I improve the fuel economy of my Hyundai Accent 1.3? Are there any special products like air filters, plugs and leads which can help?
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  Can I modify my car to save fuel? 15 Jan 2024 (Ask HJ)
  A local company says it can adjust the fuel use of my Citroen C5 6 spd, 2.0 HDi, upping it 10% without risking any parts. I'm a slowish driver, mostly...
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  My car has been sat for six years with some diesel in the tank - should I drain it before starting it? 10 Apr 2019 (Ask HJ)
  I have had a 2003 Mercedes-Benz E320 CDI sitting on the drive for the last six years with some diesel fuel in the tank. Now I am about to restart using...
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  Fuel pressure issues 3 Sep 2014 (Ask HJ)
  I have read about a possible issue with the Ford C-Max and the fuel filter becoming easily blocked with emulsion, which forces the car to go into limp...
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  Why does the engine cut out on my Astra? 13 Aug 2014 (Ask HJ)
  My 1998 Vauxhall Astra keeps cutting out. After stalling I can hear the fuel pump running. Wen switching the ignition off and then on again, the fuel pump...
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  BMW 320d - what's the best fuel and tyre combination? 7 Feb 2014 (Ask HJ)
  After reading your glowing report of the BMW 320d ED, I have bought a one year old model. Do you think it is worthwhile using a premium fuel such as Shell's...