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  Honda Civic auto not as efficient as we'd hope 19 Feb 2013 (Ask HJ)
  I was always under the impression that new cars had better fuel consumption than older ones. I recently bought a new model (second hand) Honda Civic 1.8...
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  Fuel tank size 2 Oct 2010 (Ask HJ)
  Is the actual fuel tank capacity usually that given in the owners manual or is it fact larger to give one a margin before running out of fuel? This a question...
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  Why have fuel prices not reduced at my local BP petrol station? 27 Mar 2022 (Ask HJ)
  I drive a BMW M2 Competition and from new I have endeavoured to use BP Ultimate. On 17 March I filled up at my local BP and paid £1.739 per litre. I...
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  Does E10 petrol affect fuel performance? 21 Dec 2021 (Ask HJ)
  There are many reports of E10 petrol affecting the performance and economy of cars. I am looking for a new car next year and want to know if the fuel...
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  Readers should keep their fuel tanks filled during winter. 12 Jan 2013 (Ask HJ)
  It might be time to remind your readers that during the winter months it is a good idea to keep their fuel tanks topped up to the brim for the following...
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  Can I try a premium fuel to improve my Vauxhall Astra's fuel economy? 7 Jul 2010 (Ask HJ)
  I drive a 2006 Astra 1.8 SRI with 49,000 miles on the clock. A few months ago, the onboard computer indicated a 15-20 per cent drop in economy. I checked...
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  Texaco super octane petrol 28 Jul 2023 (Ask HJ)
  You often mention Shell V Power, BP ultimate, or Total as high quality fuel. Recently I have found Texaco have a 99 octane petrol which at least here in...
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  Why have all four injectors failed on my Volkswagen Golf? 15 Nov 2017 (Ask HJ)
  I have a 2010 Volkswagen Golf and was told by a garage that the high pressure fuel pump had disintegrated and blocked the injectors. I was later told by...
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  Best small car for fuel economy? 19 Jan 2014 (Ask HJ)
  I drive a lot for work, often on motorways, clocking up 20,000 miles a year. I currently drive a petrol Honda Jazz, but want something similar with improved...
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  Does stop-start technology really save fuel? 17 Jun 2013 (Ask HJ)
  I have a new Mercedes with an 'Eco' button, which cuts out the engine when stationary to save fuel. Surely turning the engine on and off engine wastes...
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  Best fuel for Volkswagen Up - what would you recommend? 12 Oct 2012 (Ask HJ)
  I have recently ordered a Volkswagen Up (your review was very informative) and was wondering what fuel (brand, RON etc) would you recommend? The model...
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  Fuel injector - do i need to chip it? 2 Aug 2012 (Ask HJ)
  My mate is changing a damaged fuel injector in my Skoda Fabia 1.9tdi (2001) he has asked me if it needs to be chipped as some of the models do - not sure...
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  Is my car due a recall 17 Feb 2012 (Ask HJ)
  Is there a recall Audi vehicle for a dodgy fuel pump? A google search would suggest so, but I can't find anywhere to search for recalls.
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  Car won't start after running out of fuel 29 Oct 2011 (Ask HJ)
  I ran out of diesel but when I refueled the car won't start. It turns over but won't catch. Do I need to prime the pump, and if so how? It's a Mercedes-Benz...
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  How do I reset my Mitsubishi Spacestar's fuel range indicator? 28 Aug 2010 (Ask HJ)
  I have a 52-plate Mitsubishi Spacestar which shows the approximate distance you can travel with fuel, but when I topped up the distance did not change....
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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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  Do you have any tips for improving my Honda Accord's fuel economy? 10 Sep 2010 (Ask HJ)
  What are the realistic fuel figures for a 2006 Honda Accord 2.2 CDTI Tourer? On average, I am returning approximately 39 -42 mpg for general careful driving....
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  Why are Bosch fuel pumps in the Fiat Scudo and the Suzuki XL7 prone to failure? 30 Jun 2012 (Ask HJ)
  Did you know that a Fiat Scudo combi (van with seats) 2001, 2.0-litre TD and a Suzuki XL-7 2004, also 2.0-litre TD, both have two fuel pumps, one of which...
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  Can I drive my Tiguan in two-wheel-drive for better fuel economy? 15 Jul 2023 (Ask HJ)
  Can a VW Tiguan 4 Motion be switched to driving in 2WD mode? If yes, will the fuel economy improve?
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  Do you have any feedback on fuel-saving devices? 15 Aug 2022 (Ask HJ)
  Do you have any feedback on fuel savers that plug into a car's tuning system that are being marketed at the moment?