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  Why is my Chrysler Voyager having trouble starting in frosty weather? 3 Jan 2017 (Ask HJ)
  My 2003 Chrysler Voyager diesel starts poorly in frosty weather. I've had it since new and its been regularly serviced. What is the issue?
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  Is it better to top up fuel at half a tank or to refuel when almost on reserve? 11 Aug 2023 (Ask HJ)
  Is it better in the long run to top up fuel at half tank on a regular basis or to refuel when almost on reserve?
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  Would a fuel additive help prevent E10 problems with my Dacia Sandero? 29 Sep 2021 (Ask HJ)
  Would adding a fuel additive or system cleaner help prevent any possible problems with using E10 petrol in my Dacia Sandero (2018 model)?
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  Does cruise control improve fuel economy or reduce it? 23 Nov 2013 (Ask HJ)
  More than once in your column I've seen complaints by readers that cruise control is a fuel waster. I was always under the impression that cruise control...
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  Cheap fuel - is it causing me grief? 9 Dec 2012 (Ask HJ)
  I bought cheap fuel from same garage twice now. The first time, the car wouldn't start until the next day - when it ran also fine. Yesterday, I bought...
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  Reduced Focus fuel economy 24 Dec 2011 (Ask HJ)
  I run a 2009 Ford Focus 1.6TDCi Zetec which I have had since April 2011. I have consistently managed 54-55mpg. However since the car had a major service...
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  Is a problem with my Chrysler Voyager's fuel gauge related to an immobiliser fault? 18 Jul 2010 (Ask HJ)
  I have a 1998 Chrysler Voyager which I have owned from new. Recently I have had immobiliser problems (which are covered in your forum) but also the DTE...
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  Who’s fuelling who? 22 May 2010 (Ask HJ)
  Why do motorway service areas not advertise the make of fuel they are providing on the notices indicating that a service area is coming up? I use the motorway...
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  Sicktroen 12 Mar 2010 (Ask HJ)
  We have a problem with my husband's Citroen van. It sometimes will not start. Our mechanic has looked over it and feels it something to do with the fuel...
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  What Super fuel do you recommend? 6 Nov 2017 (Ask HJ)
  I've followed your advice for a number of years regarding premium fuel, both petrol and diesel. I usually put BP Ultimate or Shell V Power in both cars,...
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  How much tax is there in the cost of a litre of diesel or petrol? 16 Apr 2017 (Ask HJ)
  It is about time that you gave us your breakdown again, of how we have crude at very low prices yet unleaded petrol at chronically high prices. The VAT...
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  Is Shell V-Power fuel really worth the extra money? 1 Mar 2017 (Ask HJ)
  I notice that Shell V-Power unleaded at 99 RON octane is now sold at a 9p per litre premium at my local garage, compared to standard Shell unleaded 95...
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  Have put the wrong fuel in my Jaguar XF - what should I do? 4 Jun 2016 (Ask HJ)
  I've filled my Jaguar XF S diesel with the wrong fuel, using petrol instead of diesel. The car was driven for about 0.5 of a mile before it stopped. My...
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  Renault Kangoo conversion power loss 7 Jun 2014 (Ask HJ)
  I own a Renault Kangoo 1.6 petrol auto wav conversion. This vehicle has done 3500 miles. Three weeks ago the engine was hesitating at around 30mph. One...
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  KIA Carens starting problem 20 Jul 2016 (Ask HJ)
  My KIA Carens has been difficult to start. It usually takes at least 10 seconds when cold and around eight seconds when hot. Had a new battery and fuel...
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  Car refuelling problem - what is the cause? 22 Feb 2022 (Ask HJ)
  Every time I fill my car up with fuel it throws up the neck even though I fuel up slowly. Any ideas?
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  Bad fuel broke my Honda Civic 16 Nov 2011 (Ask HJ)
  My 57 Honda Civic recently came to a halt and had to be recovered. Roadside diagnosis was fuel pump problem. My local Honda garage finally diagnosed that...
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  I'm having a fuel system problem with my Peugeot 306 - can you help? 12 Sep 2010 (Ask HJ)
  I am having a few problems with my 306. The car will not idle. The ECU is reading: 'Permanent fault low pressure pump supply.' 'Intermittent fault:...
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  Does my Citroen C2 HDI have air in the fuel line? 10 Jul 2010 (Ask HJ)
  My Citroen C2 HDI would not start and I was having to self-prime it using the little hand pump on the fuel system. I have replaced a push-on connector...
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  Car hire query 26 Jun 2015 (Ask HJ)
  I'm hiring a car in Spain. Full/Full I understand, but what is "pre-purchase, refunds given"? Until a week ago easyCar said pay for fuel on arrival "plus...