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• Honda CR-V III (2007 - ) - Poor Radio Signal 18 May 2009 (Forum)
  Since I have had the CRV, I have noticed that when I am not in an excellent radio signal area, and have the heated rear window on, I loose signal. As...
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  The Phantom Splutter 11 May 2013 (Ask HJ)
  I purchased a second hand 2008 (58) Mini One (petrol) two months ago from a private seller. Everything had been great for the first few days until the...
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  Poor fuel consumption - how do I improve? 2 Nov 2011 (Ask HJ)
  From your info the "real" mpg of the i10 is well below claims. My new i10 1.2 achieves 42 mpg on open rural roads, few stops but short (flat) journeys...
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  Is buying another diesel estate a sound investment, considering future bans and expenses? 6 Jan 2017 (Ask HJ)
  I've got an 8 year old Honda Accord EX i-DTEC 2.2 diesel estate which I like very much and is the third I've had over the last 20 years or so. I hear alarms...
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  I put petrol in my diesel car? 3 Jun 2013 (Ask HJ)
  I've put eight litres of petrol in my 2.0 diesel Peugeot 307. The car is 51 plate. The tank was in the red, I wasn't paying attention. When I noticed I...
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  How much is an MHEV battery? 12 Feb 2024 (Ask HJ)
  I'm thinking of buying a fairly new used car. Most of them seem to have mild hybrid engines, but I haven't found information on how long these batteries...
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  Why is my Hyundai i20's fuel economy so bad? 4 Dec 2016 (Ask HJ)
  My previous Hyundai i20 - four-cylinder 1.2 petrol - was capable of 50mpg with careful driving. I've since replaced it with a newer model - three-cylinder...
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  Buying a used Audi A4 diesel - should I get the EGR valves cleaned? 10 Nov 2016 (Ask HJ)
  I'm buying a 2013 Audi A4 diesel with 110,000 miles on clock. I always use Shell V Power diesel and do 30,000 miles driving a year. I intend to keep the...
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  Will premium diesel make my DPF last longer? 27 Sep 2016 (Ask HJ)
  You frequently advocate the use of Shell V-Power Nitro Diesel which I have used in my Citroen C5 from new. You also state that diesel engines are prone...
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  How can I improve my Octavia's fuel economy? 27 Apr 2015 (Ask HJ)
  I have a 2013 Skoda Octavia 2.0 diesel. However, while my old Octavia gave 65mpg, I find the new model to struggle to get past 50mpg. I understand...
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  Should I keep or sell my Mk2 Golf? 18 Aug 2014 (Ask HJ)
  I bought my 1990 Volkswagen Golf from new in September 1990. It has alloy wheels, sunroof, radio cassette, CD player and 113,000 miles on the clock. It...
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  What's causing the engine light illuminate on my Mercedes E-Class? 11 Oct 2013 (Ask HJ)
  I bought a 2009 Mercedes-Benz E-Class CDI Blue Efficiency two days ago and the engine management light has come on. I took it back to the dealer and they...
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  Is this fuel economy normal 7 Sep 2012 (Ask HJ)
  I bought a 2006 Mondeo TDCI. It's running perfectly and has just had a major service. I'm only achieving just over 120 miles per 1/4 tank and thats on...
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  I successfully sued Tesco for not labelling fuel pumps properly. 28 Jul 2012 (Ask HJ)
  I poured unleaded petrol into my diesel Hyundai iLoad van a few months ago at Tesco, but luckily realised before starting the engine. I looked at the pump...
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  Is my tank bigger than the manual says? 1 Mar 2012 (Ask HJ)
  I filled up at a Shell station with V-Power following you advice. The range indicator was 60 miles before fill-up indicating 7-8 litres of fuel remaining,and...
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  1999 HDi black smoke on revving 4 Nov 2011 (Ask HJ)
  I have a Peugeot 406 HDi 1999 (90bhp). . It has failed its exhaust emmissions test 4.7 showing and it needs to be below 3.0. There was a lot of black smoke...
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  DERV hurt 9 Oct 2011 (Ask HJ)
  I have recently purchased my first diesel car and have been informed that I should put the expensive diesel in from time to time as it is a cleaner fuel...
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  Deal. Or no deal? 29 Aug 2011 (Ask HJ)
  A Range Rover, dealer is advertising new Diesel Range Rover 4.4 TD V.8, cash price: £68,995, deposit: £41,436, pay after 24 months £27,549, or give the...
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  Auris fuel economy 23 Aug 2011 (Ask HJ)
  You stated that you were able to return 62.3mpg on a 300 mile trip in father in laws Toyota Auris hybrid. We have had ours since September and can only...
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  How can you tell which cars have DPFs? 16 Mar 2011 (Ask HJ)
  Is there any easy way of telling which diesel cars have a DPF? I had assumed it was only those that were Euro V compliant but when browsing some second...