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  Why won’t my Golf start? 27 May 2014 (Ask HJ)
  My Volkswagen Golf Mk5 1.9 TDI turns over but won't start. I called up the local recovery service and they tell me that no fuel is getting through. However,...
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  Can I use high octane fuel in my 2002 Ford Focus? 21 Dec 2013 (Ask HJ)
  The handbook for my July 2002 Ford Focus states there is no point in using petrol of a higher octane than 95. Presumably fuel constituents have changed...
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  Engine flush and clean - worth it? 16 Feb 2013 (Ask HJ)
  I am about to have an annual service on our Saab 43,000 miles always serviced, we have been offered an engine flush and fuel treatment along with a Saab...
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  Rav4 has a corroded fuel tank 21 Jan 2013 (Ask HJ)
  My MOT has come back with three advisorys - leaking shocks, treads down to 3, but the one that worries me is that they said the rear of my fuel tank is...
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  Is the recent fuel duty postponement disingenuous? 9 Aug 2012 (Ask HJ)
  The government has deceived us, again. The recent public relations coup of helping hard-pressed families etc by postponing the fuel duty rise is really...
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  Which SUV offers good fuel economy and cheap road tax? 5 May 2012 (Ask HJ)
  I've had a Shogun for a couple of years and it’s been faultless as a family runabout. I love the size, the 4x4 capability, comfort and the fact that everything...
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  Fuel additives and modern classics 19 Jan 2012 (Ask HJ)
  Could you please offer some advice on what to do if I am thinking of buying a modern classic car from the 80s or 90s? I have been reading that the...
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  Debris in the fuel pump 14 Apr 2011 (Ask HJ)
  What recovery action would you recommend having found metallic debris in the low pressure fuel filter of a 100,000 mile Peugeot 406 2-litre diesel? It's...
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  Should my 2003 Ford Mondeo be averaging just 26-28mpg? 17 May 2010 (Ask HJ)
  I have just bought a 2003 Mondeo 1.8 LX. Nice car, but what should the mpg be? It is averaging 26-28mpg and I can't get it above 30mpg even on a motorway...
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  How can I compare running costs for petrol, diesel, electric and hybrid? 8 Aug 2023 (Ask HJ)
  I want to buy a used car for my company. How to work out the fuel / electric cost so I can compare?
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  Are the official fuel economy figures for plug-in hybrids accurate? 10 Feb 2021 (Ask HJ)
  Are the mpg figures for the Jaguar F-Pace petrol plug-in believable? How are they calculated?
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  Why is my Audi A5 shaking when it starts up? 5 Jan 2017 (Ask HJ)
  My 2016 Audi A5 has started shaking when it starts up and for the first mile or so, but when I get over 1000 revs it stops. It just had a new fuel filter...
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  Volkswagen 2.0 TDI fuel consumption increase - what's causing it? 3 Dec 2015 (Ask HJ)
  I own a 2009 Volkswagen Passat 1.6 TDI BlueMotion and recently I realised that the fuel consumption has increased considerably. I used to do 49 mpg easily...
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  Fuel consumption high and irratic idle on a 407 5 Mar 2014 (Ask HJ)
  I have a 407 SE 2.0 2004 model, petrol, low milage (56,500). Great car for what I paid. I have had a problem with the fuel consumption since I purchased...
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  Ford Fiesta 1.4 TDCi (2004) will not start - can you help? 26 Apr 2013 (Ask HJ)
  I have just driven 60 miles in my Ford Fiesta 1.4 TDCi 04, stopped for 20 minutes and then gone to restart car with no luck. The engine turns over...
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  Is it true that the FIAT 500's fuel economy will improve once the car is fully run in? 5 Mar 2011 (Ask HJ)
  I have heard a lot of complaints from friends and acquaintances who own FIAT 500 TwinAir cars. The complaint is over fuel consumption. Most people seem...
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  My Peugeot 306 stalled and now won't start. I have some fault codes - could the problem be the fuel pump? 7 Sep 2010 (Ask HJ)
  I was coming up to a roundabout in my 1999 Peugeot 306 LX HDI the other day. I lifted the throttle only for the engine to cut out. There was no prior notice,...
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  What's causing my 2005 Ford Mondeo diesel to lose power? 21 Jul 2010 (Ask HJ)
  I own a Ford Mondeo Zetec 2005 TDCI (130). I have had the car for a year with no problems at all, until now. The car starts fine and runs ok in first,...
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  Can I reject a car over poor fuel economy? 18 Aug 2013 (Ask HJ)
  In March 2013 I took delivery of a Kia Rio as part of the NHS lease scheme. This was chosen based on the fuel economy info from Kia and the lease company...
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  Does my Peugeot 407 really need diesel fuel additive? 9 Sep 2010 (Ask HJ)
  In my 2006 Peugeot 407 SW SE, diesel fuel additive should be checked at 70,000 miles and running out can lead to massive bills. Mine required three litres...