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  Mike and Burny winter 10 Jan 2009 (Ask HJ)
  I took delivery of a new Audi A4 Avant 2.0 litre 143 manual TDI in August and having now covered more than 5,000 miles I am disappointed with the fuel...
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  Can I run my car on E10 fuel? 19 May 2023 (Ask HJ)
  I have a 2011 Volkswagen Touran imported from Japan. It has a 1.4 petrol engine. Do I need to run it on premium petrol or is supermarket E10 okay?
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  V-Power in a hybrid? 30 Jan 2012 (Ask HJ)
  Should I run my new Prius 10th Anniversary on Shell V-Power? I'm hoping to get even better fuel economy to offset the additional cost at the pump.
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  Is premium diesel worth the extra cost? 23 Feb 2011 (Ask HJ)
  Is it worth using a premium diesel fuel in a 2007 VW Passat 2.0 TDI car from the point of view of performance, engine longevity, smoother running etc?
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  Should I use a premium fuel in my Honda Civic Hybrid? 1 Aug 2010 (Ask HJ)
  I have a Honda Civic Hybrid (07). Do you think using a more expensive petrol would be better for my car than normal fuel?
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  What are the benefits of Shell V-Power diesel? 17 Oct 2024 (Ask HJ)
  What are the benefits of V Power diesel?
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  Do you recommend fuel additives for petrol engines? 9 Feb 2022 (Ask HJ)
  Do you recommend Redex additive for petrol engines?
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  I made a stupid mistake and put the wrong fuel in my car. What should I do? 9 May 2021 (Ask HJ)
  I filled my diesel Nissan Qashqai with petrol. What’s the best course of action?
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  How much of the fuel efficiency of a 2016 Prius Plus would you say is due to different elements? 2 Oct 2016 (Ask HJ)
  How much of the fuel efficiency of a 2016 Prius Plus would you say is due to the different elements of (1) the Atkinson cycle CVT engine (2) hybrid battery...
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  What MPV would you recommend? 14 Jun 2015 (Ask HJ)
  I like to sit up high in a new car following hip problems, comfort and fuel consumption is important to me. Does one get better fuel consumption from manual...
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  Large 4x4 best fuel tank range 9 May 2015 (Ask HJ)
  Commute a round trip of 200 miles per day on a free flowing motorway. Need a large 4x4 with a big fuel tank range. Have £15k to 18k to spend. What is recommended?
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  Pump doesn't stop automatically when filling up 14 Dec 2012 (Ask HJ)
  When you insert the nozzle and fill the tank, the pump doesn't automatically stop it just fills the tank and then floods the forecourt with petrol. What...
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  Can new tyres affect my fuel economy? 3 Oct 2012 (Ask HJ)
  I drive an Audi A3 1.6TDI, driving 20,000 per year with fuel economy on motorways between 58mpg and 64mpg depending on weather, temperature and traffic...
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  Why has my Audi A4's fuel tank contracted? 4 Jul 2012 (Ask HJ)
  I have just had my Audi A4 serviced and the mechanic tells me that the diesel tank is curved inwards on the bottom underside as if it has been sucked in....
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  Have supermarket fuels improved? 13 Jun 2012 (Ask HJ)
  I subscribe to 'What Car'. The latest (July) edition has an impressive ad by Tesco singing the praises of the quality of their fuels, and I do note that...
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  My Ford Focus won't start 18 Mar 2012 (Ask HJ)
  My Focus will not start at all and displays the error code P0251. Changed the fuel pump and a diesel specialist checked injectors. Confirmed in good condition....
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  Which petrol should I buy? 12 Feb 2012 (Ask HJ)
  I have a high performance car and recently read an internet article regarding an extensive test for the best fuel. Surprisingly, Tesco 99octane came...
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  My car is suddenly using more fuel. 13 Jan 2012 (Ask HJ)
  Following eye surgery I could not drive my 2007 BMW 320 diesel for a month. Since restarting my use of the car, the average fuel consumption shown on the...
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  Mazda 6 diesel fuel consumption 23 Mar 2011 (Ask HJ)
  My husband purchased a new Mazda 6 estate in November 2010. He previously owned a Honda Accord. Since buying it he has constantly complained of poor...
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  vat on fuel 17 Dec 2010 (Ask HJ)
  When the last government reduced the rate of vat to 15% the duty on fuel was increased by 2.5% but when VAT returned to 17.5% the extra 2.5% tax was not...