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  Can I drive my Tiguan in two-wheel-drive for better fuel economy? 15 Jul 2023 (Ask HJ)
  Can a VW Tiguan 4 Motion be switched to driving in 2WD mode? If yes, will the fuel economy improve?
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  Do you have any feedback on fuel-saving devices? 15 Aug 2022 (Ask HJ)
  Do you have any feedback on fuel savers that plug into a car's tuning system that are being marketed at the moment?
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  Are there any long term problems with direct fuel injection engines over port injection engines? 20 Jul 2018 (Ask HJ)
  Are there any long term problems with direct fuel injection engines over the port injection engines type? Particularly with Subaru's Impreza?
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  Why does my Audi A4 have poor fuel economy following the emissions upgrade? 22 Mar 2017 (Ask HJ)
  Has anybody else had a reduction in their fuel economy following the recent emissions upgrade? The range on my Audi A4 has gone from 620 to 570 miles per...
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  Why is fuel economy so awful for autos? 5 Dec 2014 (Ask HJ)
  Why is fuel consumptions so bad in automatics, compared to the manual versions? It appears to be worse with Kia/Hyundai/Ford, most with dual clutch boxes....
• Peugeot 307 HDI 2.0L 2002 - Engine won't start 7 Jul 2014 (Forum)
  Hi All - The high pressure fuel pump seized when the car was being road tested by a local garage. They had the engine hooked up to diagnostic equipment at the time & I was told that it went into something called limp halt mode. They left the car on my drive as any garage repair was going
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  Which is the best fuel for keeping my engine clean? 15 Sep 2012 (Ask HJ)
  Am I wasting money by occasionally purchasing Esso Supreme? I do this with the idea of it perhaps cleaning the engine and parts of my Mazda 5 Sport. I...
• 2003 Renault Clio 1.2 16V - Car wont start, have fuel and spark 3 Mar 2012 (Forum)
    I have a Clio 2003 1.2 16v and it wont start most days, I have fuel and fuel pressure to the rail but it still wont start. I have 4 spare injectors and fuel rail with injectors still attached and have
• how to put up fuel duty AND save money 19 Aug 2009 (Forum)
  now here goes, we all love paying road tax don't we? ok, i thought not. if the government scraps road tax and puts a fuel duty UP a few pence it might work. average driver gets 30mpg (probably not right but work with me) average driver does 12,000 miles a year (same again, it's just some numbers
• Ford galaxy 2007 1.8 tdi - Fuel supply 22 Feb 2018 (Forum)
  My ford galaxy recently had a flywheel and clutch replaced and ever since has a had a fuel supply problem. When the fuel level reaches quarter tank the vehicle won’t start: mechanics have looked and are having big difficulty diagnosing the problem. Any idea please?
• MY17 Focus RS and premium fuel? 12 Aug 2017 (Forum)
  I am picking up a new Mk3 Focus RS tomorrow, and have been having an ongoing discussion, both on and offline, about the best fuel to use in it. Is standard 95Ron fuel suitable for the RS ( will it allow the car to perform at it's best ), or should I use something like Shell -V-power
• Supermarket Fuels 21 Jan 2015 (Forum)
  Cue debate...thoughts? Which to avoid. Sainsbury's are currently offering the cheapest fuel however, would it pay to pay the extra and fill up at the likes of Shell / BP? Also, is it true Tesco use Esso fuels - and is it any good? I use diesel in my SD, I ask because I live
• Peugeot 106 1.5 Diesel On An R Plate - How To Remove Fuel Filter Housing 12 Oct 2013 (Forum)
  Please can you tell me how to remove the fuel filter housing due to replaced fuel filter 3 times and still have a diesel leak on my diesel 1.5 106 on a R plate
• cirtroen c3 - Fuel tank leak ?? 2 Apr 2011 (Forum)
  I have just filled my citroen c3 1.4 diesel, and fuel has leaked from underneath the car.  Does anyone know if there is a relief or overflow valve that could cause a leak ?  I have checked the fuel pump area accessed from under the back seat and that is dry.  Is this a case
• Ford Mondeo III (2000 - 2007) - 04 2.0 fuel leak 10 Jan 2010 (Forum)
  i have had a strong smell of fuel for some time and no one managed to find it but today i took it too a different garage and he found it right away and has said that it is common on mondeo's and most places just replace the fuel pump
• Peugeot 406 (1996 - 1998) - 1996 1.8lx fuel filter removal 28 Feb 2009 (Forum)
  The fuel filter on my pug 406 1.8 petrol needs changing as it is leaking due to a hole in it. It is positioned under the car near the drivers side back wheel. Does anybody know how to release the fuel lines from it without breaking the fittings Thanks
• Fuel consumption at tickover 17 Jan 2006 (Forum)
  This morning, I was stuck in a 1.5 mile queue of *very* slow-moving traffic on the A33 heading towards M4 J11. With the fuel gauge in the red and the computer saying I had a range of 12 miles left in the tank, it got me wondering. How much fuel does a typical petrol engine consume (GPH) when just
• Diesel fuel cetane ratings 15 Dec 2005 (Forum)
  I've done a few searches but didnt come up with much. Do modern diesels engines have an adaptable engine management system, that can adapt to the cetane rating of the fuel in the tank? Will a higher cetane diesel fuel only give performance and/or economy benefits, if the engine is able to adapt
• mondeo td bleeding fuel lines 20 Oct 2005 (Forum)
  I have just installed a fuel injection pump, the car will not start it just turns over. I think it could be air in the system as I have renewed the fuel pipes as well.i have tried to bleed it but all I do is flatten the battery, is there a sequence for bleeding air out of the system or can someone
• On board computer & fuel consumption. 11 Nov 2004 (Forum)
  Hi - I've noticed over the last couple of weeks that I've been reading these fora that there's a lot of suspicion re. over optimistic fuel consumption read outs. Why is this? How big is the margin of error? Am I missing something very simple ie. the computer doesn't log fuel used on tick over when