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• 
  Oil leak diagnosis 20 Jun 2011 (Ask HJ)
  I've replaced the cam seal on this engine (a TUD) along with cam belt and tensioner. Once it started I got oil running down from the tensioner bracket...
• 
  Insect aside 23 May 2009 (Ask HJ)
  I have looked at a Beetle 2 litre cabriolet automatic. The car is a 2006/56 with 24k miles and a service having been stamped in the book at 17k. When looking...
• Mondeo ST220 - oil spec 5w30? 27 Aug 2006 (Forum)
  I decided to do throw caution to the wind, and changed the fiesta for an ST220 Mondeo. The car needs a service, and i just would like to check that the spec for the 3.0 Duratec is still 5w30 semi synth as opposed to anything else. many thanks
• Mondeo Power Steering 26 Feb 2006 (Forum)
  The oil cooler on my dads mondeo has started to crack or has a hair line crack as it weeping oil. Is changing the cooler as simple as removing the 2 pipe fittng the new cooler and then turning the power steering lock to lock for a bit or is it more involved? Help would be appreciated.
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  Golf R haldex failure - what are my rights? 20 Apr 2015 (Ask HJ)
  My 2012 Volkswagen Golf R recently had its major service and Haldex oil replaced. However, within weeks of the work, the Haldex failed along with the rear...
• 1986 Daihatsu Skywing ( Like 3-cyl Charade) - Got some dirt in my engine 17 Sep 2012 (Forum)
  . The basic idea is to use 3 changes of 30% 2-stroke as a flush while turning the non-firing engine over with the plugs out, then, after changing the oil filter, do a couple of close-succession changes (say 100 miles or so) with Delvac 15W/40 and (very old) Mobil Special 20W/50, before resuming normal oil
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  Is an engine flush and clean necessary on a three year old, low mileage car? 23 Jun 2017 (Ask HJ)
  Is an engine flush and clean necessary on a three year old, low mileage car?
• Cam Belt changes. 28 Aug 2004 (Forum)
  I have been reading the thread regarding oil change intervals and one or two contributors mentioned cambelts. I am not sure what the manufacturer recommends (if anything) for my car so perhaps I could have a reasonably definative opinion from the techies amongst us. My car is to be run until
• BMW longlife oil 23 Jun 2005 (Forum)
  (when it was only 12k miles between services) is Castrol SLX 0w-30. It would be useful to know if using this would be acceptable or not? Finally, I'm sure I've seen HJ write about 5k oil changes etc - does that still hold true with modern oils and engines? Many Thanks in anticipation! Graham.
• Ford Focus mk2 - Oil getting dirty rather quickly 30 Dec 2010 (Forum)
  Hi All I have a a 2007 focus 1.8 petrol. Since the car was serviced in April at Dees of Croydon (franchised dealer), i have only covered 4k miles. I checked the oil the other day and noticed that it has changed colour to dark brown. The level has not gone down at all. The service interval
• 1999 Vectra - ticking noise on startup 11 Mar 2006 (Forum)
  2.0cc DOC engine. I have been told I may have a blocked oil way feed pipe to a cam follower(as a loud ticking noise is heard when engine is started). I change the engine oil every six months. Is there any risk in using an engine flush to cure this problem? The car has covered 90,000 miles. Doesn't
• Is This Normal? 10 Jul 2003 (Forum)
  I was checking over the car today, it's a Micra 1L, W Reg, and underneath the car what I think is the sump is half covered in greasy oil. There are no drips and it is not losing any oil, I get six monthly oil changes and have never had to top it up. The bottom side of the engine is the same just
• Focus Oil Pressure Sensor 26 Mar 2003 (Forum)
  I'm not sure whether this belongs in Discussion or Technical.... In HJ's column this week, a reader wrote in to complain about not getting a courtesy car. His oil pressure sensor required replacing, and his car was in the garage for three days. Since HJ didn't comment on that, it's left me a bit
• cavalier with blue smoke 12 Sep 2002 (Forum)
  I have a Cavalier 1.6 and as soon as you start the engine, blue smoke comes out of the head, the only way to keep the car running is by taking off the oil filler cap off. There is no oil in the water and the oil in the engine is clean, There is also no knocking noises coming from the engine I
• Ford Mondeo TDCI - DPF and Service Oil Warning advice 9 Oct 2012 (Forum)
  is that this engine's DPF doesn't have fluid, but injects Diesel into the oil/exhaust (I'm not claiming to be an expert!) to aid the combustion needed for regeneration. Hence there would be no 'fluid' to change. Probably being a little greedy but one further question. Should I notice DPF regeneration? From what
• VW Golf mark VI 1.6 TDi (2009, Diesel) - Which oil for top-up ? 18 Mar 2014 (Forum)
  The car is due for a service in May. But I have noticed the oil level is on the lowest notch as indicated by the stick.  I would like to do a top up - and then in May I can get a filter+oil change done together. Just two questions:   1. I'm a bit confused - web searches
• Which oil spec to use in VW TDi engines? 25 Apr 2005 (Forum)
  I'm new to posting on forums so apologies if I miss something out. I've just bought an '01 VW polo 1.9 tdi (90bhp). It has a full vw history and was serviced just before I bought it, but the oil doesn't look too clean so I though I'd change the oil and filter but am unsure of which grade/spec
• Oil overfill, should I worry ? 23 Dec 2004 (Forum)
  Hi, I've recently had an oil change done at National Tyres & Autocare, and they seem to overfill it slightly. I know what the consequences could be of oil overfill but I just wonder if the amount is enough to cause any problems (I personally think unlikely, but what's your opinion). This is what
• Burning oil 6 Oct 2003 (Forum)
  , Audi A4 2.8 quattro, which only managed 1 litre per 1k miles, it is an improvement, but when I compare this with my brother-in-laws Mazda 323, that has covered 167k miles and still does not burn a drop of oil between 6k mile changes. Is it any wonder that Mazda feature so highly in all the recent car
• Seat Alhambra Diesel Fault Code 21 Nov 2002 (Forum)
  checked the top of the oil filter and saw that a wire was off. I put this back on (assuming it was the wire to the oil pressure switch) but that changed nothing. If the vehicle has been recently running, the oil lamp doesn't flash. I suspect that the oil switch has developed a fault, and that this is some