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• Introduction of E10 fuels 1 Mar 2021 (Forum)
  Scheduled for September but I understand that it’s not without its potential problems for both petrol and diesel cars, especially the older ones....
• VW GOLF - BG fuel system products 16 Feb 2017 (Forum)
  HI any experience of using BG oil system cleaning products would be helpful. they seem to have a complete suite of products. Kind regards Kaleem...
• Motorway extravagance 20 Apr 2016 (Forum)
  What has it cost to erect roadside gantries to display the cost of fuel at the motorway service stations? Who has to take on fuel at a motorway service station?  Surely a waste of money.  Fix the motorway potholes, but then that is a different budget.
• vectra dti - fuel 12 Jul 2013 (Forum)
  hi got a 2003 vectra dti 2.0 and just wondered what sort of mileage i should get out of £10 pound of diesel, iam currently getting about 72  miles...
• fuel filter - Audi A6. 19 Feb 2004 (Forum)
  anyone ever changed an oil filter on audi and no where they are located? car in question is an A6 tho apparently the working parts are meant to be very...
• 5th Gear 27 Nov 2002 (Forum)
  5th gear last night, pointed out that Bi fuel and LPG cars are exempt from the London congestion charging scheme even though the exact same sized car running conventional fuel isnt:-))) mmmmmmm.....
• Fuel Worry # 2 20 Mar 2002 (Forum)
  I was day-dreaming at the gas station today and the pump attendant filled me (or rather my truck) up with leaded instead of unleaded. Engine seems fine...
• US carmakers economy unchanged in 15yrs 24 Jul 2006 (Forum)
  EPA's efficiency estimates are less conservative than widely cited calculations used by the Transportation Department for measuring passenger vehicle fuel standards or Corporate Average Fuel Economy (CAFE). The EPA has proposed tougher government-wide requirements for calculating fuel economy. The Transportation Department is also reviewing its standard for passenger cars to reduce overall U.S. oil consumption, but any change is not expected for a few years.
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  Will a diesel engine deep clean help improve my MPG? 27 Oct 2025 (Ask HJ)
  I have a 2011 Nissan X-Trail I have owned since new. It's approaching 130,000 miles and on long journeys I've noticed my MPG has dropped considerably....
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  Why is Shell V-Power so expensive? 19 Jun 2025 (Ask HJ)
  Shell V-Power diesel at our local Shell station is now a massive 22p per litre more than the standard diesel at the same site. Why is this? Is there no...
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  Is it damaging to allow my car to idle for up to five minutes on cold mornings before setting out? 6 Mar 2025 (Ask HJ)
  Is it damaging to allow my car to idle for up to five minutes on cold mornings before setting out? I have heard conflicting advice about this. Am I causing...
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  Do I need to use high octane fuel in my Porsche? 5 Apr 2024 (Ask HJ)
  Can you advise, my Porsche has 98 octane fuel printed on the filler cap. This is not always available and I use 95 Octane without any discernible effect,...
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  I have a diesel car that's been sat around for 8 months. Could this cause the injectors to fail? 2 Feb 2021 (Ask HJ)
  The engine in my diesel Mercedes was fine before but it was left sitting for nearly eight months, without starting. When it was started again the engine...
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  How long will petrol last when it's sat in a car? 17 Apr 2020 (Ask HJ)
  Could you advise on the shelf life of petrol? I refuelled my Volvo XC60 with Shell 99 RON one month ago and I've not used the car to go more than a few...
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  Would my hybrid car benefit from premium fuel? 22 Jul 2017 (Ask HJ)
  I have a new Toyota C-HR Hybrid in which I'll do about 8000 miles per year, mixed driving. I also have a 2016 Toyota Aygo semi auto in which I do about...
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  Will Volkswagen replace the injectors on my Volkswagen Caddy after the emissions fix? 22 May 2017 (Ask HJ)
  I've only had my 2010 Volkswagen Caddy Maxi for a month and the fuel injector has gone. The van has only done 77,000 miles. I read somewhere that Volkswagen...
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  What's the best way to start my standing 1996 Ford Mondeo? 2 May 2017 (Ask HJ)
  My 1996 Ford Mondeo been standing for three years. What is the best way to approach starting it again? I've fitted a new battery but it didn't start. The...
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  Chrysler Voyager fault codes - what do they mean? 27 Oct 2016 (Ask HJ)
  I have a 2004 Chrysler Voyager diesel auto, which I've owned for three months. It seemed fine, until recently, when it started making a clonk noise and...
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  Supermarket fuel vs independent suppliers - which is best? 29 Dec 2014 (Ask HJ)
  Last week you advised against supermarket petrol. I have long been confused about this issue. I have been told by one chap who was 23 years in the oil...
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  How do you measure real fuel consumption? 18 Nov 2014 (Ask HJ)
  Most of the fuel consumption figures given by the public and your reporters are taken from the fuel consumption gauge. On all the cars I have own this...