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Taxi meter 2 Jan 2010 (Ask HJ)
Surely it is possible in these days of Big Brother to tax vehicles, not on engine size, but on their individual mileages done per annum? We are pensioners... -
How much fuel does air conditioning use? 15 Jul 2022 (Ask HJ)
How much fuel does my air conditioning use and is there any way to test if it's fully working and as cold as it should be? -
If I start using premium fuel after 80k miles, will there be a release of carbon deposits and would this damage the engine? 3 May 2020 (Ask HJ)
My Avensis has done 82,000 trouble-free miles on supermarket petrol. If I now start using Shell high octane fuel, will I get a sudden release of carbon... -
Which diesel fuel for my Mercedes-Benz E220? 18 Aug 2012 (Ask HJ)
I am about to purchase a new Mercedes E220 ‘Executive SE’ saloon. I have read varying reports on supermarket diesel fuel and I am reluctant to fill up... -
Can I demand a free fuel economy check for my Vauxhall Astra under warranty? 16 Jul 2010 (Ask HJ)
I've had an Astra SRI150 CDTI leased from new since February. In 5000 miles the fuel consumption has gradually worsened by about 10 per cent. I'm now averaging... -
Can I store my car for months on end because of Coronavirus with a full tank of fuel? 19 Mar 2020 (Ask HJ)
If I store my 2006 Nissan X-Trail 2.5-litre petrol with nearly a full tank of super unleaded, will the petrol have deteriorated too much when I start using... -
Can I use standard unleaded in my 1990 Mini Moke? 8 Oct 2018 (Ask HJ)
I have just bought a 1990 Mini Moke, but the dealer is not sure if the cylinder head has the hardened valve seats to use unleaded petrol. Do you think... -
It's almost impossible to get fuel into our newly bought used car - what's the problem? 4 Aug 2017 (Ask HJ)
My daughter just bought a 2006 Ford Focus 1.8 TDCi from a used car trader. It's only possible to put a trickle of diesel in or else the nozzle cuts out.... -
Recommissioning a Mk1 Golf Cabrio 10 May 2016 (Ask HJ)
I own a Mk1 Volkswagen Golf convertible which was last started 16 years ago! It has been kept in a garage since then. Apart from buying a new battery and... -
Superfuels 26 Jan 2016 (Ask HJ)
You have advised using high octane fuel such as Shell V Power Nitro. However motoring writer Laura Thomson has advised that although premium grade fuel... -
Mystery petrol leak 5 Jun 2014 (Ask HJ)
My low mileage 1998 Mercedes-Benz SLK is only used in the summer and is always kept garaged. However, recently I have noticed a small petrol leak with... -
Fuel Economy of post-2008 cars 11 Jan 2013 (Ask HJ)
You mention in the current stats that newer cars fair worse on fuel economy compared to official figures - do you have the average drop for newer models... -
Is it okay to use fuel additives? 21 Nov 2012 (Ask HJ)
Over the years I've used Miller's Diesel Plus in our diesel cars, mainly to lubricate the injector pump rather than seeking extra performance. We have... -
Which small car offers better fuel economy than the 1.6-litre Golf? 3 Oct 2012 (Ask HJ)
My mother recently had her reliable old Ford Fiesta written off after a car hit her. She has replaced it with an S-reg 1.6 Volkswagen Golf, but is only... -
Is it worth using a diesel additive in my Volkswagen Passat? 6 Sep 2012 (Ask HJ)
I drive a 2007 Volkswagen Passat 2.0TDi 140 SE saloon. Could you please advise me if using Millers Diesel Power ECO MAX fuel additive is worth the expense?... -
Real fuel economy of the 2011 Focus? 18 Jul 2012 (Ask HJ)
I really like the look of the 2011 Focus, it gets excellent reviews in most motoring journals. So why is the real fuel consumption from your register,... -
BMW 1 Series won't start 13 Jul 2012 (Ask HJ)
My 1 Series engine fires but then resorts to a chugging sound and does not fire up properly. No computer data problems on dash board, fuel all good. Car... -
Why doesn't my warranty cover fuel tank breather fault? 16 Jun 2012 (Ask HJ)
I purchased an extended warranty when I bought a 2008 SEAT Ibiza Ecomotiv from a dealer. The breather to the fuel tank is leaking, and I am told this is... -
Ford Fiesta 'Engine System Fault' 13 Mar 2012 (Ask HJ)
Frequently at 70mph the 'Engine System Fault' message appears and the car, 2008 Fiesta TDCI goes into Limp Home Mode. Ford plugged it in and said that... -
Mazda 5 Diesel; 2007 Reg started using oil and poor fuel consumption 28 Dec 2011 (Ask HJ)
Just passed 51k miles and now using oil at a guess of about 1 litre/500 miles. Poor fuel consumption - and when in second gear (as in going around a corner,...
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