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Diesel freezing in the Alps - how can I avoid it 21 Nov 2012 (Ask HJ)
My car, a Mazda 6 TS2 Diesel 2.2, is kept in the Alps during the winter at a height of 1300 meters. In February for two weeks, the temperatures ranged... -
Am I wasting my money using super unleaded fuel? 4 Jul 2017 (Ask HJ)
I have three cars - 2011 Mazda MX5 Roadster 2.0-litre, 2011 Mazda 2 TS2 1.35-litre and 2016 Skoda Yeti 1.2 TSI SEL. I am using Shell V-POWER U/L in all... -
Is the stop start system in my Honda Jazz more trouble than it is worth? 4 Mar 2024 (Ask HJ)
I have some doubts about the benefit of this facility. Every time I come to a stop with foot held on the brake the engine stops and release the brake and... -
I'm unsure if my 1982 Ford Sierra was converted to unleaded - should I run it with lead additive or on unleaded petrol? 21 Aug 2018 (Ask HJ)
I recently returned to the road my 1982 Ford Sierra 1.6 (petrol, pinto, manual) I believe it came off the road in 2002 or earlier, long before I purchased... -
Please warn your readers about hire car companies in Spain overcharging for returning cars with no fuel. 23 Aug 2011 (Ask HJ)
I booked a hire car in Majorca in June though a broker paying in full in advance. The terms and conditions on the voucher (there are also terms and conditions... -
Should I expect better fuel economy from my Mercedes-Benz C200 CDi Estate? 12 May 2011 (Ask HJ)
Last September I replaced my C220CDi Mercedes-Benz Estate (85,000 miles) with a Blue Efficiency C200 CDi Mercedes Estate – both diesel automatics. Over... -
Why is my Mazda 6 returning just 40mpg when it is advertised as returning up to 52mpg? 10 Feb 2011 (Ask HJ)
I bought a Mazda 6 estate 'Takuya' edition in September 2010. It’s a 2.2TDi (163ps) with an advertised mpg of 40.9 urban and 52.3 combined. Given the rising... -
Which all-wheel drive is best for efficiency? 29 Mar 2016 (Ask HJ)
I am torn between a 2004 Subaru Forester X AWD 2.5 and a 2005 Nissan X-trail 4WD 2.5. I want to know which is more fuel efficient; a constant AWD like... -
My 2001 Vauxhall Astra won't start - any idea why? 15 Sep 2010 (Ask HJ)
I've got a problem with my 2001 Vauxhall Astra 1.8 SXI, which won't start in the mornings but will go with a push. Once started, if I turn it off will... -
Misfueling advice 22 Jan 2012 (Ask HJ)
As an avid reader of your forum can you explain to me, why, based on your knowledge you furnish so many people who inquire about what to do regarding misfuel,... -
How much profit are fuel retailers making at the moment? 15 Mar 2022 (Ask HJ)
What is the profit per litre of petrol and diesel at today's prices on the forecourt? -
Does the trip computer on my car give accurate fuel economy readings? 15 Nov 2018 (Ask HJ)
My Ford Mondeo the dashboard info tells me my average mpg is 57.2 - way above what I see on Real MPG. Could this be a true figure or computer error? -
Poor fuel economy after service 6 Jan 2016 (Ask HJ)
My Vauxhall Zafira 1.7 diesel (13 reg) used to do about 45 miles to the gallon around town but after my last service it does only 38 miles to the gallon.... -
Does climate control increase fuel consumption 6 Mar 2014 (Ask HJ)
If I put auto climate control on 99% of the time will I use more petrol than if I turned it off ? To assist you I drive a Ford Mondeo Ghia X Manual... -
All weather tyres - are they any good? 28 Jan 2014 (Ask HJ)
I am interested in replacing Michelin Energy / Primacy tyres with your recommended Goodyear all year tyres to enhance winter performance. What are the... -
How can we tell the difference between petrol and diesel? 29 Jun 2013 (Ask HJ)
We have two fuel containers for emergency use in our cars, my husband’s being petrol and mine diesel. Is there any way of knowing which is which? We think... -
What weight figure is accurate? 14 Feb 2013 (Ask HJ)
I was looking at the brochure for the new Peugeot 208 and noticed that the kerb weight of a 1.2 VTI is 975kg, however its mass in service is 1,168kg, a... -
Fuel economy is disappointing. 17 Sep 2012 (Ask HJ)
I have just bought a brand new Hyundai i20 1.1 75PS Active. The marketing documentation claims that the car will achieve 61.4 mpg (urban) 83.1 mpg (extra... -
Poor fuel economy in my Ford Fusion diesel 1.4 . What's the cause? 6 Jun 2012 (Ask HJ)
I have recently bought a Ford Fusion Diesel 1.4. It's one owner with 46,000 miles. I am only getting 43mpg on a combination of motorway and commuting journeys.... -
Poor fuel economy on a Lexus IS - any ideas? 31 May 2012 (Ask HJ)
Just bought a Lexus IS220d and I'm very dissapointed with the mpg, I'm only getting 24 mpg, but the official Lexus site says 35 mpg urban 55 extra urban...
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