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• 65mpg is rubbish 6 Mar 2006 (Forum)
  I did think that the 1.4 HDi Citroen C2 and C3 having fuel consumption in the 65mpg region was good. But.... A typical 2.0 TD large hatchback weighs about 50% more Has an engine 50% bigger Produces 84% more power (138 v 75bhp) Accelerates quicker, especially in-gear acceleration and... only uses about 1/3rd more fuel.
• engine tuning? 1.6 Vauxhall Astra 18 Dec 2005 (Forum)
  hi, i own a vauxhall astra 1.6 16v xreg, my fuel consumption is about 370mls on a full tank! i dont drive it too hard!! can this car be tuned like you could adjust the co on a carb? and adjust the timing? or is everything pre-set? the car is seviced every 12months plugs,airfilter,oil,fuel filters all changed regular. please help!!!!!
• French diesel fuel 25 Feb 2005 (Forum)
  I am convinced that our Megane gives us about 4 to 5 mpg more when running on french diesel. In the UK I generally use BP or Texaco and average 50mpg....
• Clio 1.9tdi starting problem 23 Feb 2005 (Forum)
  Once started it runs fine and also starts fine once warm. Anyone know what the cause may be or if I need to prime the fuel system in any way? Thanks, Mark
• Volvo 760 Turbo - fuel additive 6 Apr 2004 (Forum)
  Our Volvo 760 Turbo (B230ET engine) needs 'SuperGreen' 98 Octane unleaded. This is not easily available so have been using LRP. Been told by the Volvo...
• Vauxhall Omega Help, im desperate please 1 Mar 2003 (Forum)
  Hi, i filled up my car (Vauxhall Omega 2.5 V6 CDX Estate, manual gearbox) with about £50 worth of fuel, haven`t done that much mototrway driving, a lot of driving through the town (and YES i know thats bad !) my fuel comsumption display says it`s doing 17.3mpg, that can`t be right surely ? cheers Wayne
• Diesel MPG 31 May 2002 (Forum)
  What can I do to improve fuel economy without changing driving techniques?
• old chap and the road tax fine 18 Apr 2002 (Forum)
  About time they scraped road tax anyway. The only fair system is to tax actual usage of both raod and fuel? The more you use the more you pay. Put road tax on fuel please Gordon !!!!!!!!!!!!!!! Alex
• Why waste money on Diesels? 21 Mar 2002 (Forum)
  Can anyone explain why a vast ammount of money is spent on developing 'cleaner' diesels, and trying to get them to the same level in refinement as petrols, when this money could be spent on more eco-friendly (hatefull noun I know) such as dual fuel cars, hydrogen fuel cells? As far as I know, Diesels are still very polluting, PM10 particles or somethink, yet these seem to being promoted as the future. How come? Kev
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  What steps do I need to take in recommissioning a car that's been standing for 18 years? 16 May 2019 (Ask HJ)
  A friend has asked by advice on returning their 1992 Sierra Sapphire Cosworth 4WD back to roadworthy condition. It is in immaculate original condition...
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  Why are the fuel injectors corroding on my Peugeot horsebox? 4 Jul 2017 (Ask HJ)
  I have a problem with my Peugeot Boxer horse box. It is four years old and has only done 6500 miles. To date, I have had to replace two fuel injectors...
• Ford Mondeo - LPG? Forget it! 19 Sep 2013 (Forum)
  So, including the conversion, I've added about £5,000 to the cost of covering 40,000 miles, not counting the aggravation, loss of performance and poor fuel economy. My projected fuel cost for the period would have been £6,750 at today's pump prices had I not done the conversion. My fuel cost at today's prices running on gas are about £4,500.
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  Is a cold-start knocking in my Superb Estate the result of contaminated diesel or a failing DMF? 3 Aug 2013 (Ask HJ)
  Having given my local Skoda garage £370 to flush contaminated diesel from my Superb estate, a serious cold-start knocking issue persists as bad as ever,...
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  Starting problems with a van when warm - any ideas? 23 Mar 2013 (Ask HJ)
  I'm having trouble starting my van when the engine is warm. I've just had a new timing chain put on by my mechanic and since then I have this problem....
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  Which premium diesel fuels are the best for which types of driving? 2 Feb 2013 (Ask HJ)
  I have been reading with interest your advice on diesels having just taken delivery of my new company car a Mercedes-Benz E350 CDI. Like all diesels, it...
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  Ford Focus management light 2 Jan 2013 (Ask HJ)
  I own a 2003(53) Ford Focus TDCi, and over the past months - now and then even mid journey - it goes a bit sluggish, as if turbo not kicked in! Then lots...
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  Why has Shell's 'fuel saver' diesel increased my Chevrolet Cruze's consumption from 29.4mpg to 27.86mpg? 3 Apr 2011 (Ask HJ)
  I have now run a Chevrolet Cruze diesel auto for over one year. Since Shell introduced "Fuel saver" diesel, my consumption has increased to 27.86 mpg average...
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  You're wrong about the effect of coasting on fuel economy. 29 Aug 2010 (Ask HJ)
  Twice in the past year you have answered a similar question to 'is it economical to coast in neutral down hill'. Both times your answer is wrong! Of course...
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  Stupid fuel 15 Aug 2009 (Ask HJ)
  I recently did what appears to be what an ever increasing number of diesel fuelled cars owners are doing in that I filled my diesel Focus with petrol....
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  Was I missold a car because it's not getting the mpg I was told? 22 May 2020 (Ask HJ)
  What do the WLTP phases mean in real terms? Is the extra high phase just motorway driving? Basically, I bought a new Hyundai Kona 1.6 hybrid as I wanted...