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Why are fuel prices so different in continental Europe to the UK? 6 Sep 2012 (Ask HJ)
Can you explain why the concept of supply and demand in terms of diesel and petrol prices is turned on its head in continental Europe, where the price... -
Replacement small car - diesel or petrol? 12 Jul 2011 (Ask HJ)
I do 36,000 miles a year commuting (95% motorway) and have been running a 2007 1.4 diesel Fiesta to keep fuel costs low. I've already had to replace the... -
Performance fuels - which is best? 1 Jan 2015 (Ask HJ)
You frequently encourage readers to use Shell Nitro+ diesel, and on a recent trip that went through Edinburgh I brimmed my tank twice with the fuel, and... -
Is Shell fuel really that much better than supermarket fuel? 9 Apr 2018 (Ask HJ)
I've always used Shell V Plus diesel in my Range Rover TDV8, with 160,000 miles on it. My neighbour said it was a waste of money, so I switched to Asda... -
Full tank of fuel, but low fuel light is on 6 Jan 2015 (Ask HJ)
I have a 2010 Ford Fiesta 1.4 diesel. Recently, the low fuel light has come on, even when there's a full tank of fuel. Why is this? -
Smoky Chrysler Voyager 16 May 2013 (Ask HJ)
I have Chrysler Voyager diesel. When I start it in the morning it produces a lot of smoke. It goes away eventually. -
Is six years long enough for a fuel pump? 14 Dec 2012 (Ask HJ)
I've owned my (diesel) Ford Focus from new six years ago. I've always serviced it at the main dealer, but after problems starting the car, they tell me... -
Fuel of my future 18 Apr 2009 (Ask HJ)
I am not sure whether to buy a used Audi 2.0 litre 140 TDI or a 2.0 TFSI, around 70k miles. I am aware that the diesel will give more mpg but as I will... -
Fuel injector fault with Astra diesel 29 Jun 2013 (Ask HJ)
I have a 2007 Vauxhall Astra diesel 1.7 CDTi. At the moment I’m getting no fuel in at the injectors and no fault codes. I bought the vehicle with the... -
Many years ago I purchased two jerry cans and filled them with diesel - is the fuel still okay to use? 15 Jul 2019 (Ask HJ)
During the last fuel scare many years ago I purchased two jerry cans and filled them with diesel. The cans have not been opened. Is the diesel in them... -
Misfueling petrol into a diesel 13 Jul 2013 (Ask HJ)
I recently filled the tank of my diesel Mercedes-Benz E-Class with petrol. Although there are no legal requirements, I feel Sainsbury's garage owe me some... -
Standard vs premium petrol - which is best? 8 Feb 2016 (Ask HJ)
I have followed your site for some time and have many a time heard the advantages of Premium diesel (or even branded diesel) over supermarket diesel. I... -
Why is fuel more expensive at motorway service stations than at high street supermarkets? 11 Jul 2011 (Ask HJ)
I recently purchased diesel fuel from Messrs Road Chef via their Strensham North outlet located upon the M5 at £1.439 per litre. Incidentally the fuel... -
Is it worth using an additive in my diesel? 16 Aug 2010 (Ask HJ)
Do you think diesel additive is worth buying and using? Or would it be better to buy the premium fuel on the forecourts? -
Best diesel for Jaguar F-Pace? 5 Oct 2016 (Ask HJ)
I have a new Jaguar F-Pace. Is it worth buying branded diesel,rather than supermarket fuel? If so is premium worth the extra? -
Toyota RAV4 diesel pump - has it died? 13 Dec 2012 (Ask HJ)
I have a 2005 Toyota RAV4 diesel with 57,000 miles on the clock. It was running fine, but now won't start. We've been told that it's probably the diesel... -
How do we store a plug-in hybrid electric vehicle (PHEV) for six months? 1 Apr 2022 (Ask HJ)
We leave our diesel vehicles stored for up to six months with the tanks full to avoid condensation pollution. We're considering changing one of them to... -
Why aren't fuel pumps designed so that nozzles can't be replaced wrongly? 22 Aug 2010 (Ask HJ)
Can anyone confirm that all petrol nozzles at a fuel station will also fit in the diesel holder of the pump? Around eight months ago I filled up at... -
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.... -
Trouble starting a Volvo V50 diesel 14 Jun 2012 (Ask HJ)
Volvo V50 2-litre diesel has a fuel pump that is more of a suction pump mounted on the engine after the fuel filter. If air gets into this line then the...
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