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Is coasting downhill better than descending a hill in gear? 30 Jun 2012 (Ask HJ)
With my DVLA road tax reminder I received a leaflet exhorting me to save money (and petrol) by adopting a “smarter driving style”. Included was the advice... -
This Italian car website shows the fuel consumption of various cars at top speed. 8 Apr 2012 (Ask HJ)
I thought you might find this interesting from an Italian car magazine - fuel consumption at top speed. If you wish to look at other models, go to www.alvolante.it,... -
Engine problem with my BMW 5 Series 2 Apr 2012 (Ask HJ)
My BMW has a problem. When accelerating it immediately starts to shudder. I stop and the engine is very rough as if it is misfiring. -
Why aren't modern cars fitted with freewheeling devices like that found on the Rover P4? 27 Aug 2011 (Ask HJ)
Rover fitted a selectable free wheel device to its ‘Aunty’ models in the 1960s. I recollect my father using it for most of his driving. Why has something... -
Diesel additives 6 May 2011 (Ask HJ)
Today's diesel fuel is low sulphur - an EU requirement for polution control - but sulphur helps lubricate the fuel system. I have been told that by adding... -
Why is my fuel economy 7mpg less in winter? 25 Jan 2018 (Ask HJ)
Why is my fuel economy 7mpg less in winter? Since the weather has got colder, my fuel economy has got a lot worse. From an average of 43mpg in summer,... -
Technical problem need advice 17 Feb 2013 (Ask HJ)
Our car, a Golf TD is having problems starting. It has an intermittent problem when some days it takes a few seconds to fire. On one occasion it wouldn't... -
What is the Real MPG fuel economy of the Ford Focus EcoBoost? 5 Dec 2019 (Ask HJ)
I'm only getting 37mpg from my 2017 Ford Focus 1.0 EcoBoost 140. That's well below any figure I've seen published by Ford. Any idea why this is the case?... -
What's the fuel economy like in the Octavia 1.8 petrol? 6 Apr 2015 (Ask HJ)
A friend of mine has told me not to buy the Skoda Octavia with the 1.8 petrol engine. He's a tax drive and said economy for this engine is as low as 25mpg.... -
My Transit won't start 18 Apr 2012 (Ask HJ)
My 2006 diesel Transit was running OK, then I stopped driving, left it a couple of days and now it will not start. Has the fault code P1361. I have had... -
Is fuel tank condensation in my diesel tractor causing starting problems? 18 Feb 2012 (Ask HJ)
Some 2-3 weeks ago you ran a letter about problems with diesel fuel blockage caused by the addition of biodiesel to standard diesel and lack of use of... -
Storm in a petrol tank 19 Sep 2009 (Ask HJ)
I filled up with 42 litres of Shell V-Power last Wednesday afternoon. The car initially continued to run well but by Thursday evening, after about 45 miles,... -
Looking through used cars for sale on your website, I can't select fuel type. 22 Jan 2014 (Ask HJ)
I'm looking for a 1.6 THP (petrol) but can only select "1.6" and all these filthy diesels appear! -
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. -
Real fuel consumption: BMW 520d Touring 14 Dec 2012 (Ask HJ)
In the Real MPG section, there isn't a slot for the 520d E61 2009 (Tourer). Could it be added it please? Just bought one a couple of months ago, very... -
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... -
Injector issue with a 1.6 Passat diesel? 7 Sep 2012 (Ask HJ)
Car just over 3 yrs old, under 40,000 miles. Two fuel injectors are faulty. This is not the model subject to a TR, so what chance getting some goodwill... -
Fuel economy 18 Mar 2012 (Ask HJ)
I want more mpg from my Mercedes-Benz E320 CDI - is a bolt on chip the way to go? Some manufacturers say they improve mpg by 20% but is it true? -
Why shouldn't diesel fuel be stored for long periods of time? 28 Jan 2012 (Ask HJ)
Some time ago you warned against storing a spare can of diesel for too long. Now I have a diesel car I would appreciate a repeat of that advice. -
How much fuel can my 1990 Ford Sierra hold? 14 Jul 2010 (Ask HJ)
I have a 1.8TD Ford Sierra estate, 1990 H-reg. Do you know how much fuel it can hold?
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