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  Supermarket fuels - are they that bad? 11 Nov 2011 (Ask HJ)
  Does your advice regarding the use of supermarket fuels still stand? I understand that you recommend the use of premium fuels (diesel in my case) as opposed...
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  Is running on low fuel bad for your car? 21 Sep 2016 (Ask HJ)
  I have read in a number of places that is a bad idea to run a diesel car on low fuel. Apparently you should never let it go below 1/4 of a tank. Is this...
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  Waitrose supermarket fuel - is it any good? 12 Nov 2012 (Ask HJ)
  My local Waitrose supermarket has just changed from BP fuel to Shell. On your advice I have avoided supermarket fuel like the plague. As I believe...
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  Does supermarket fuel have 'lower capability' additives? 14 Jan 2022 (Ask HJ)
  I have been advised that petrol additives are actually added during fuel station delivery. Non-branded stations, such as supermarkets, receive fewer or...
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  What's the best diesel fuel? 12 Dec 2013 (Ask HJ)
  With all the trouble that is being reported with diesel waxing up this year - what diesel do you recommend?
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  Why is my fuel gauge showing as full all the time? 19 Jun 2020 (Ask HJ)
  I have 2011 Volkswagen Polo. The fuel gauge is showing full all the time. What's wrong?
• 530ds e39 - air in fuel line 15 Oct 2011 (Forum)
  i have air in my fuel line and full tank of fuel any ideas fuel pump seems to be pumping ok
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  Issues with fuel sending unit 29 Jul 2014 (Ask HJ)
  I have suffered two fuel sending unit failures with my 2010 Hyundai Santa Fe. On each occasion the vehicle had driven without problem. The first time it...
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  What might have caused my 320d injector pump to fail? 16 Apr 2013 (Ask HJ)
  Have just had the fuel injection pump on a 2000 BMW 320D replaced at a cost of £2,500. Trying to find out if BMW's recall on the fuel pre-delivery pump...
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  How do I measure my fuel economy? 26 Sep 2012 (Ask HJ)
  How much fuel does each bar on the fuel gauge represent as I seem to only be getting 34mpg. Example I have done 115 miles on half a tank (3.5 gallons)...
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  Fuel costs 17 Jan 2011 (Ask HJ)
  How do you tell who is paying for their own fuel and who is in a company car? The owner driver is doing 90kph. The company car is doing 90mph.
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  There's potentially water in my car's fuel tank. What should I do? 29 Jul 2021 (Ask HJ)
  I left the fuel cap off my petrol Kia. I didn't find this out for 3 weeks whilst on holiday. Rain probably got into the fuel tank. What should I do?
• Pug 306 diesel, fuel temp regulator 29 Jul 2005 (Forum)
  My guess is that the fuel regulator when cold, shuts off the flow to the fuel heater circuit. As the coolant temperature rises, it opens the fuel heater circuit gradually mixing the colder fuel with the hot fuel (rather like a mixer tap).
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  Starting on hills with low fuel 7 Nov 2011 (Ask HJ)
  My car won't start on hills facing upwards.
• 2011 Ford Focus 1.6 TDCi Sport Hatchback - Fuel filling problem with easy fuel 3 Apr 2018 (Forum)
  The fueling noozle  starts clicking as well if try to fill at normal speed. Can you change the fuelling system or do we need to stick it on diagnostics as someone said it may be due to a previous theft of fuel from vehicle and them removing easy fuel cap.
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  Fuel economy when coasting 9 Aug 2012 (Ask HJ)
  A leaflet from the Department of Transport ("Be a smarter driver and save money") says this: "Don't coast downhill or towards the lights in neutral as...
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  Where's the fuel pump in my 1998 Volkswagen Golf? 7 Aug 2010 (Ask HJ)
  I had the AA man come and recover my 1998 Mk4 Volkswagen Golf, and he whittled the non-starting problem down to a fuel pump. Would you know where the fuel...
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  Supermarket fuel v branded fuel - which is best? 27 Mar 2024 (Ask HJ)
  I have a question for you about what is the best, most suitable fuel (petrol) to put in my recently bought 2019 Kadjar S Edition 1.3 TCe 140 EDC with 21K...
• Peugeot 406 - Fuel problems 2.0 HDI 110bhp 7 Jun 2016 (Forum)
  Just wondering have i managed to get air into the system ? if so how do you bleed the fuel system ? or is their a fuel solenoid somewhere between the tank and fuel rack ?? Any help is very much appreciated, Gaz O.
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  Should I use premium fuel? 20 Jul 2020 (Ask HJ)
  Is it a good idea to use premium fuel in my 2018 Ford Fiesta 1.0-litre?