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• Jaguar XF - Using wyns diesel particulate filter cleaner 22 May 2015 (Forum)
  Hello, I have been having problems with the DPF clogging up and alarming and have started to use wyns diesel particulate filter cleaner , adding it every month. This seems to be working really well as I have had no more alarms but this treatment is not recognised by Jaguar and I am worried that I may invalidate my warranty.
• Vauxhall astra 1.7CDTi 2009 Estate - Astra Headlight and Dashboard lights flickering 16 Feb 2014 (Forum)
  Hi i have a vuxhall astra 1.7 diesel, ecently the headlights and interior dashboard/console lights start to flicker, the rev counter idles and the dpf appears to regenrate. There is no warning light on the dashboard so not sure what could be causing this. it happens every 3-4 miles. Any suggestions what this could be Thanks      
• Ford Focus - 2.0TDCI vs 1.6TDCI reliability 22 Nov 2013 (Forum)
  I'm looking at buying a 2.0TDCI Focus 2009 with 54K and ford FSH, but seeing all the bad stories about the 1.6 has put me off a bit . Is the 2.0 TDCI likely to throw up the same issues as the 1.6 TDCI re: the DPF etc? Cheers, Tim (i also posted on the technical forum in error - sorry)
• Skoda Octavia - diesel or petrol reliability 16 Nov 2012 (Forum)
  I am seeking some advice on whether its better to buy a petrol Octavia  over a diesel. My main worry with the diesel is the usual dpf, dmf and injector problems. I do about 40k a year and get paid 20p a mile fuel plus a monthly payment. I can't afford the new CR diesel and so it would be a PD if I bought one. Any advice would be appreciated.
• Diesel engine filtering atmosphere at 0.06 28 Aug 2012 (Forum)
  But that said, always take it up to 4,000 revs once, on every hot engine trip. Sad that later incarnations are fitted with a DPF, but I suppose they are even better on the emissions test. Are they?
• 08 Ford Mondeo Estate titanium 1.8 TDI - Nobody has been able to diagnose problem - HELP! 2 Jul 2020 (Forum)
  However, this morning i was driving my son to school and the car went into engine malfunction, limp home mode doing 20mph around residential areas. 4 - DPF clean - After extensive googling and speak to people, it sounded like the DPF filter needed to be cleaned. All of the symptoms matched up, and my handbook said my car had a DPF filter fitted but when i got it to halfords, they said i did not have a DPF filter.
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  What's the better campervan investment - petrol or diesel? 15 Oct 2018 (Ask HJ)
  We’re considering buying a new Volkswagen California, or alternatively a T6 Transporter Kombi for conversion. Though the default choice would obviously...
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  Motability is now charging to unclog DPFs - should I get a petrol SUV/MPV to avoid this issue? 5 Mar 2017 (Ask HJ)
  I'm a Motability hirer. For three years, I have driven a diesel Nissan Qashqai 1.5 and had no DPF problems whilst doing mainly short runs and covering...
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  Mazda 6 problems 19 May 2016 (Ask HJ)
  I have owned a 2014 Mazda 6 auto Tourer now for nearly a year and travelled over 20k in this time. I have had a couple of issues. Firstly, prior to...
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  Can you give me some advice on maintenance? 25 Jan 2016 (Ask HJ)
  You recently provided some advice when asked if I should part-ex my 2 1/2 yr old Focus 1.6 tdci Zetec S for a new 1.0 Ecoboost on account of my car's advancing...
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  Why is my Volkswagen Polo's engine cutting out whilst I'm driving it? 2 May 2011 (Ask HJ)
  I bought a new Volkswagen Polo SEL 1.6 CR/DPF 90PS 5-speed manual in November 2010. It now has 1,500 miles on the clock. It stalled at a junction soon...
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  Suitable medium-size long-lasting car for retired person. 9 Mar 2011 (Ask HJ)
  I currently have a Skoda Octavia 1.9 Tdi Elegance which will soon need four new tyres and timing belt change, so decision time looms. Should I keep...
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  Please recommend an economical, easily-accessible car capable of driving over rough tracks? 2 Oct 2010 (Ask HJ)
  Would you be kind enough, please, to recommend a car that will do approximately 10,000 miles per annum, and will last for the next ten years, will do at...
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  Internally Combusted 21 Nov 2009 (Ask HJ)
  I have a 15,000-mile Vauxhall Combo 1.3 diesel that has blown up its engine because the particulate filter was supposedly not regenerated. Vauxhall will...
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  The mouse that roared 26 Sep 2009 (Ask HJ)
  My wife has a 12 month old FIAT 500 diesel. Today while driving it "made a funny noise" then started to accelerate. She put in the clutch and pulled over...
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  Is diesel or petrol better for a used car? 11 Apr 2024 (Ask HJ)
  What are the advantages/disadvantages of diesel over petrol for a ten year old car?
• Diesel and DPF 2 Mar 2024 (Forum)
  When I bought my car last year (TDi) I was doing regular 60 mile motorway trips 2 or 3 times a week.  Since then my circumstances have changed dramatically...
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  My car's emission engine light is on, how do I get this to go out? 22 Sep 2023 (Ask HJ)
  Is it true I have to keep going on long journeys to clear this sign?
• Choosing an SUV for long drives? 28 Jun 2023 (Forum)
  I was disappointed to discover that recent versions of the Honda CR-V are not available in diesel, and I am concerned about getting a bad DPF if I get a used diesel. I'm also a bit concerned about DPF theft. I am aware of the CR-V, RAV4, Kodiaq, Sportage, Kuga, CX-5, CX-60, XC40, XC60, XC90. I have test driven several of these and I have no real complaints, aside from poor fuel efficiency on some – particularly new petrol and hybrid CR-Vs.
• Mazda 3 2.2 Sport Nav '17 - Mazda 3 2.2 Skyactiv Diesel Facelift issues 27 Apr 2022 (Forum)
  Is there anything I need to watch out for? I always use premium diesel and I assume it's cleaner and prevents DPF and Injector blockages, somewhat? Be honest, if I've made a mistake I'll get rid but I'm hoping I've done the right thing. It's done 47k with full Mazda history and is on a 17 plate.