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• Fuel prices (again!) 1 Jul 2005 (Forum)
  Just noticed that prices near where I live (South Devon) have finally crept above 91p a litre for diesel, even at supermarket stations. I'm accustomed...
• Citroen C5 V6 - changing ignition coils 9 Nov 2004 (Forum)
  wondering whether anyone can tell me whether it is necessary or useful to disconnect any of the fuel lines or fuel injectors when changing the ignition coils on a C5 V6 engine? I believe the V6 has separate coils for each cylinder. Thanks
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  How is the MPG for PHEVs calculated? 4 Oct 2024 (Ask HJ)
  How are the figures calculated for a Lexus NX 450 PHEV - that has a published mpg of 256.7mpg?
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  Will the emissions fix undo my Audi remap? 18 Mar 2017 (Ask HJ)
  My diesel Audi 2.0-litre has been remapped. Will the emissions fix undo my remap, thus meaning I will have to pay to get it done again?
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  Where should DPFs be mounted? 1 Mar 2015 (Ask HJ)
  Are there any diesel engines where the regen fuel is not injected directly into the engine on the exhaust stroke? To my mind a DPF should ideally be as...
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  My fuel consumption is down - why? 19 Jan 2015 (Ask HJ)
  I have a 3 month old Mondeo (TDCi 163) - on taking delivery the tank was empty and had to fill up with standard Jet diesel at the nearest garage - this...
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  How can I improve the fuel economy of a Ford Focus? 30 Oct 2014 (Ask HJ)
  My sister’s 2005 Ford Focus 1.6 is getting very poor fuel economy, about 24mpg on short trips and about 29mpg on long trips. I have fitted new plugs, air...
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  Is there a difference between French and UK pump fuels which can affect fuel economy? 17 Aug 2013 (Ask HJ)
  I was interested to read your comments about the KIA Sorento. Two years ago I took delivery of a new KX3 2.2D and the following day started a journey to...
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  Vibrating Audi A6 29 Sep 2011 (Ask HJ)
  I've got vibration at cold & idle at 1600-1800 revs, then tails away. When driving cold, it loses power at that rev range too. My mechanic has said...
• Civic 1.8 VTEC - Poor fuel economy after little use for 12mths 1 Mar 2021 (Forum)
  as less than 1/4 left. Which seems like I have used a large amount of fuel? Could be wrong but I was surprised. According to the trip I'm doing 52mpg... Car has only done 280 miles since the last service in march 20. Has anyone else experienced this ? I don't know if it's one of those things
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  Can I syphon the diesel out of my car? 26 Apr 2019 (Ask HJ)
  Could you please advise me how to get diesel out of the tank of my car that is possibly going to be written off? There is £40 worth in and we've tried...
• Suzuki SX4 S-Cross - Suzuki -SX4 -S Cross -1.6 - motorway fuel economy? 22 Feb 2019 (Forum)
  Any owners of the Suzuki SX4 S-Cross 1.6 petrol on this forum? This car has great fuel economy specs, both on official specs, as well as on this site's real economy section. Despite being a crossover and having a 5 speed manual gearbox, The fuel economy figures trumps those of hatchbacks
• Ford CMax Zetec 1.8 tdci diesel - Help! CMax recurring diesel fuel injector failures 14 Sep 2016 (Forum)
  Our 2009 CMax 1.8 tdci has had 3 diesel fuel injector failures in the 3 years we have owned it. Each time, the car has gone into limp mode and the garage has found a fault code relating to one of the injectors. Two injectors have been replaced so far, one
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  Intelligent Motorist Pack 30 Aug 2015 (Ask HJ)
  My 2014 Swift was serviced on Friday by the main dealers - they charged me £24.98 + vat for a "intelligent motorist pack". This turns out to be an engine...
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  Ford C-MAX keeps stalling when idling 8 Aug 2015 (Ask HJ)
  My Ford C-MAX petrol 57 plate runs well but keeps stalling when idling. It restarts okay. The Ford garage is unable to find a problem and nothing shows...
• Peugeot 406 hdi - Peugeot 406 hdi fuel flap not open 1 May 2015 (Forum)
  Dear All i already tried to fix my fuel flap but just had no time but today i found one at scrap yard.Only thing i not sure that i need only just the door itself or i might need the hole unit if that,not even sure how is that comes as unit? Or what it contains as unit? Just checked
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  Can fuel injectors be cleaned? 19 Feb 2015 (Ask HJ)
  My BMW was misfiring recently, so I took it to my local BMW dealer. After diagnosis, they said one of the injectors failed and therefore all the four injectors...
• Ford Focus Zetec S 1.8 tcdi - repair problems 6 Feb 2014 (Forum)
  and flywheel. It came back from a local independent garage only to find it had a fuel leak, it went back and I was told the fuel pump had gone (not his fault !)and it has now been reconditioned only to find it still had a fuel leak. (after 3 trips back it had two leaks (one from an injector and one from
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  Focus diesel runs rough when cold 22 May 2013 (Ask HJ)
  My Ford Focus 2.0 TDCi 05 plate runs rough when cold - like a petrol car 'missing.' It's OK when accelerating. I have had the glow plugs changed but...
• Renault Espace 2.2 dci 2001 - Espace 2.2 dci lack of power uphil 24 Dec 2012 (Forum)
  I have an electronic fault occuring every time I go uphill with a complete lack of power, ie 15 mph but no black smoke. Going downhill, no problem. Car is otherwise great and gradually returns to full power. I have had all  fuel pumps, and various sensors replaced over the last 5 years