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• Troubled conscience 14 May 2005 (Forum)
  Did I wait until the new plastic domestic oil tank arrives? Er, no, I added it to the 40 litres of diesel already in my car's fuel tank. But, I have a feeling that I need to pay some fuel duty on this. Anyone know if there is a precedent for this?
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  Mercedes-Benz C220 CDI (W204) blowing black smoke 24 May 2014 (Ask HJ)
  I own a 2009 Mercedes-Benz C220 CDI (W204) with an automatic gearbox. I have recently had a problem where the car is blowing out black smoke and the car...
• Vauxhall Tigra - Help Cleaning Hydraulic Roof Pump Sludge 30 Aug 2024 (Forum)
  I have bought a pump from a junkyard which has black sludge in the fluid reservoir. It is metal clamped onto the pump unit itself, cannot be removed for cleaning. The hole for topping up oil is tiny and indented into the bottle making it difficult to empty properly.
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  Fried turbo 29 May 2010 (Ask HJ)
  Apparently, BMW E46 2.0 litre turbo diesels are prone to turbo trouble. Could you kindly elaborate upon this by stating what these are, how they manifest...
• Make your own bio-fuel 19 May 2006 (Forum)
  In todays Daily Telegraph London Property Section was a short article that included how to turn cooking oil into bio-fuel for diesel engines. Sorry there is no link, so I have retyped it. Make your own bio-fuel All you need is a 45 gallon oil drum painted black and with a tap down the side, a large saucepan, a large sieve, some J-cloths and white spirit.
• "Flushing oil" BMW 325 TD 22 Apr 2004 (Forum)
  Hi....... i'm new here and have searched for info and read a few of the oil related threads before launching in and posting a question. I have just purchased a very abused BMW 325 TD 94 (L) 134,000 mls. the oil is very black and has that gritty feel when rubbed between finger and thumb.
• Ford Mondeo III (2000 - 2007) - 00 2.0 diesel Heater / Engine Issues 16 Dec 2009 (Forum)
  Now my temp gauge has started to fluctuate. Possibly because I opened the cooling system reservoir last night and some black oily stuff spilled out a little. Not sure if this is normal??? Could someone make some suggestions? Please note that upon checking my oil with dipstick it was very low so plan on topping this up in a bit.....
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  Why is my Ford C-Max speckling my caravan with black spots? 23 Aug 2010 (Ask HJ)
  I have a Ford C-Max 2.0 TDCI Ghia on a 55 plate with the Euro IV engine. When we first had the car, when it was 18 months old, the car went in under warranty...
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  Why does my car keep kicking out lots of white smoke? 16 Sep 2018 (Ask HJ)
  My Vauxhall Vectra has started kicking out LOTS of white smoke. Then nothing for days and then smoke again. The water level is dropping slowly but performance...
• Oil pressure light - Shogun 10 Jun 2010 (Forum)
  I appear to have an oil starvation problem with my 2002 Shogun 3.2 diesel. At first it only occurred if I went straight onto a motorway after a cold start. (I live 2 miles from the motorway, so it was not completely cold).
• Renault Scenic (1999 - 2003) - 00 1.9 dci smoking 14 Jun 2008 (Forum)
  i have a renault scenic diesel 1.9 dci i have just noitice(at night) that when travelling along exessive smoke is being produced it looks white from the mirror. whrn i put my foot down this changes to grey/black can anyone tell me the reason or help with solving the problem. i was told once that you can get a can of oil that you put on the fuel inlet and rev the engine until gone and this solves the problem i look forward to your help.
• smokey 1.9TD peugeot expert van 22 Jun 2007 (Forum)
  its like low revs smoke and high revs none... then when i get to the T junction and pull away 1st and 2nd smoke again. I dont know when the last service was. i have checked the oil and thereis plenty in there. could there be too much oil ? i ahve also checked the air filter and there was some oil in there!!! What do you guys reckon ??????? {Subject header amended make less vague, as per the Peugeot 306 d turbo engine problem 14 Dec 2004 (Forum)
  hi i have a problem with a 306 d turbo R reg 1998 1.9 litre turbo diesel xud engine, regularly serviced, 78k miles, cam belt replaced at 70k. when im driving the car hard (3500 rpm) or over 80 on the motorway occasionally there is a loud diesel clatter and the engine looses power for a second or so and there is a MASSIVE puff of black/blue smoke visible in the rear view mirror.
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  Where's the best place to buy a used Ford Galaxy? 1 Oct 2016 (Ask HJ)
  Do you still recommend Addison Lee for buying a used Ford Galaxy? Just saw some negative comments on other websites. Is it worth getting a mechanic to...
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  Smokeless moan 19 Jun 2010 (Ask HJ)
  I own a 2002 Mercedes C220 CDI automatic, regularly maintained, still good to drive and still giving over 50mpg on motorways. Oil consumption is also very...
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  Do 'no smoke' treatments actually work? 1 Oct 2018 (Ask HJ)
  Can you advise me on Wynns Stop Smoke oil treatment or similar products. Do they actually work? I have a diesel and have been told it needs either a new...
• "Piston, Diaphragm, Vacuum Thingie" 31 Jul 2003 (Forum)
  My diesel man cannot work this out. Help! Rob
• Corsa Diesel - Glow Plug Problem 10 Jul 2004 (Forum)
  Hi. My wife has a 1.5 Diesel Corsa (Feb 1995). It has done 67,000 miles since we bought it from new. It does 400 miles a week on the motorway and is serviced regularly, oil changes at 6,000 miles and we use Shell Diesel fuel.
• jumpy/smoky F. fiesta, injector leak? 2 Feb 2007 (Forum)
  opened up the bonnet, around the right injector there is a lot of dark soot (lost for the correct description, it's not oil, but black stuff on the metal) i've been reading, alot, what i've found so far is that dark smoke is too rich air mixture....i know the air filter is due a change, would that by itself be enough to cause the problems?
• Vauxhall Corsa C (2000 - 2006) - 02 1.0 Oil and performance problems - HELP! 14 Apr 2008 (Forum)
  There is a distinct dip in power when starting off almost to the point of it stalling if you do not keep the revs up and it now sounds like my blinking diesel Vectra. There is no power when driving and it takes a long time to accelarate up to 55-60. I took the rocker cover off for a look and the entire inside was a mess, there was a serious build-up of black clay gunge everywhere including in between the camshafts and it sounds as though the top end of the engine is being starved of oil.