Refine by channel:  Forum (8753)    Ask HJ (3761)    News (1294)    productReview (61)    Article (54)    FAQs (20)    Good Garages (5)  

Sort by: Relevance | Newest first | Oldest first

• 
  The MPG on my car is terrible - what could be the cause? 3 Jun 2024 (Ask HJ)
  I have a Vauxhall Insignia and all seems mechanically sound with 68000 miles on the clock, a recent service and full service history plus new discs brakes...
• 
  How realistic are official fuel consumption and CO2 figures for new cars? 22 Apr 2020 (Ask HJ)
  I'm thinking of buying the new Ford Kuga PHEV 2.5. The fuel consumption figures are 201mpg and CO2 of 26g Are they serious? I’ll never achieve that, will...
• 
  Could a faulty fuel tank be affecting my Honda Jazz's fuel consumption? 17 Aug 2013 (Ask HJ)
  My 2010 Honda Jazz 1.4 EX gives strange fuel consumption results. I filled it to the brim, looked at the computer and it said it could do 490 miles until...
• 
  Should I use a fuel system cleaner for a GDI engine? 3 Oct 2022 (Ask HJ)
  Is there any evidence that a fuel system cleaner can stop the build up of carbon in a GDI engine, especially one fitted with a turbo?
• 
  Why will my Ford Sierra not start? 3 Jan 2020 (Ask HJ)
  I have an issue with my 1992 Ford Sierra 1.8 diesel. It has an intermittent problem where it will occasionally not start. Any idea what the problem could...
• 
  Citroen Synergie fuel pump 26 Nov 2015 (Ask HJ)
  Does a 1996 Citroen Synergie 1.9td have an in tank pump. Car starts but stalls but can then run fine. I have changed filter. Have found once pumped hand...
• 
  Why does my Rover 75 keep cutting out? 8 Nov 2014 (Ask HJ)
  My Rover 75 broke down recently. I had the alternator replaced and it ran for a few days, but cut out and would not restart. I was told the fault was a...
• 
  Volvo XC70 won't start 13 May 2014 (Ask HJ)
  My Volvo XC70 D5 (2010) Auto continually refuses to start. I have had a new fuel pump fitted, but the problem persists. The car is back with the dealer...
• 
  Windows down or air con on? 25 Jul 2012 (Ask HJ)
  My 60 Nissan Micra has air conditioning. I am told that using this dramatically increases the fuel consumption. I am also told that having the windows...
• 
  Diesel smell from Ford Galaxy 31 Oct 2011 (Ask HJ)
  I have another problem with my Ford Galaxy 55 plate. I have a slight smell of diesel when the car is running or has run. The smell is most noticeable nearside...
• 2.2 dci x-trail - deisel x-trail fuel pump problem sorted. 20 Aug 2011 (Forum)
  i have found a cheap and reliable way of repairing my x-trail. the symtoms were as it would suddenly go into limp mode and i would turn off the ingition and back on again and it would be fine for another few miles until it done it again. a nissan dealer told me it wa about €2000 to replace the fuel pump and it would sort out the problem. i took out the fuel pump and i looked at it closely to see how it worked and what could go wrong. on the side of the fuel pump there is a silver switch in a barrel shape held on by two small bolts and this switch is a fuel pressure switch. i found a deisel switch supplier and the switch cost me €93. when i fitted the new switch it had to be programmed by a nissan computer and that cost me €25. the problem is cured and its never happened again in over 50000 kilometers. its a lot cheaper than a whole new pump at €2000.
• 
  Cruise control - what effects does it have on fuel consumption? 19 Sep 2010 (Ask HJ)
  I have recently purchased a car with cruise control. What are the pros and cons of using this with regard to fuel economy. Will I gain or lose driving...
• 
  Using premium fuel in my Volkswagen Passat has improved fuel economy and burns more cleanly. 10 Jun 2010 (Ask HJ)
  For a while I had been sceptical about the benefits of using higher quality fuel opposed to cheaper supermarket grades. Now that I have been using Shell...
• 
  Can tanker us 20 Mar 2010 (Ask HJ)
  I have made a New Year resolution to never fill my tank more than half full. My thinking is that I will be making a smaller interest-free loan of tax to...
• 
  Controlled substance 19 Dec 2009 (Ask HJ)
  Can you advise me whether cruise control on a long motorway journey is more fuel-efficient than the right foot? I thought that as the fuel is being constantly...
• Fuel consumption figures 16 Mar 2008 (Forum)
  Intellectually satisfying to them, results in league-table positioning for their bosses, but of no consequence to the rest of us - apart from how the resulting VED hits our wallets. As official fuel consumptions have fallen dramatically, my own fuel consumption has risen. Funny that.
• CAFÉ ? fuel economy 6 Sep 2006 (Forum)
  Also, the oil companies certainly don?t want to sell less fuel when they are having such a good time. Instead, the industries and the unions have lobbied congress and succeeded in getting the government to change the method of calculating the fuel efficiency so that it doesn?
• Volvo D5 Fuel problem 30 Oct 2003 (Forum)
  I've now heard from the dealer who is unsure as to what the situation is. Basically I had problems starting, to the extent the car wouldn't start. They swapped the Fuel pump and gave the car back. It failed again after 1200 miles and a few days. Another fuel pump, and it still wont start, so now they've swapped the fuel injectors, and it appears OK and they want me to pick it up.
• Faulty fuel computer in my Renault 19 18 Nov 2002 (Forum)
  This is annoying as I have no other gauge. As before, the new part shows 0_1g as the fuel level, and the low fuel wawrning light is permanently on. The temperature function works fine and I have reset the computer. The 0_1g is also displayed on a working computer if the sender unit is not connected.
• 
  Fuel delivery problem with BMW 3 Series 30 Sep 2014 (Ask HJ)
  My BMW 3 Series E46 is running poorly, The engine appears to be uneven in its power delivery and feels like the diesel isn't getting through. Any ideas?...