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• Citroen C5 2003 - Citroen Poor Starting 5 Dec 2014 (Forum)
    The problem seems worse in extreme temperatures i.e. very hot or very cold.  Dont'know alot about diesel engines but seems like poor compression?  Fuel starvation? Fuel pump seals?  Once the engine is started it drives perfectly......   All suggestions welcome.  Thanks. 
• Toyota Avensis - oem vs aftermarket oil air cabin fuel filter 22 Sep 2014 (Forum)
  I was wondering what your opinions are on makes of filters. I am going to service my car my self 2004 D4D Avensis. so far genuine filters made by...
• Small turbos? 2 Apr 2014 (Forum)
  On paper, it sounds amazing, but I wonder what they are like in the real world. Is their performance that good and is their fuel consumption comparable to a normal engine? The only turbo I have driven is a Fiat TwinAir. I didn't really enjoy driving it and owners were reporting high fuel consumption. If I remember correctly you had to either completely abuse it for good performance (and high consumption) or you had to labour it and have no power, there seem to be nothing in the middle which is what I want for every day driving.
• Vauxhall Mokka 1.4 turbo 4×4 - can I use Shell Vpower in my new Mokka 3 Feb 2014 (Forum)
  I am about to take delivery of a Mokka 1.4 turbo and have contacted Vauxhall Uk about using Vpower in this vehicle as the manual reccomends 95 octane or possibly 98 octane whilst Vpower is 99 octane. They have informed me that the use of this fuel could invalidate any warranty in the event of any future engine problems. Bearing in mind Honestjohn recommending this fuel on a number of occasions c an anyone advise accordingly.
• FIAT Doblo - Diesel van fuelled with petrol instead of petrol 15 Jan 2014 (Forum)
    Has since driven van and has received conflicting advice on what to do: one garage says to have tank and fuel system drained; another independent machanic says it is OK to continue driving but not to over-rev and to add upper cylinder lubricant periodically.  Is it not the diesel fuel pump which is vulnerable to petrol because it does not contain oil lubricant?
• Any - Refilling The Fuel Tank - Full or Half Full? 7 Aug 2013 (Forum)
  Hi all, I always fill my car up when it needs refuelling. My mate only ever fills his half way arguing that the extra weight of a full tank increases...
• renault scenic 1.9dci privilage 55 reg - injection fault message 18 Jun 2013 (Forum)
  i recently broken down and had to get rac out as car engine would not start,rac guy squeezed fuel primer and then it started.it is fine driving but next day message came on dashboard of injection fault as car would not start,i squeezed primer again and it started and drove fine. i was told it could be dirty fuel so i have added deisel injection cleaner and might take a couple days to clean.
• Tbd - Best car for high mpg when driving at 85mph 16 May 2013 (Forum)
  I currently drive a '98 Mondeo 2.0 which has 140,000 miles on the clock and is very reliable but only delivers 31mpg. That's a lot of petrol to buy every year. Any recommendations for the most fuel efficient car for my needs? Also, any thoughts on what would be the lowest total cost (purchase, depreciation and fuel) for my needs? Suggestions greatly appreciated Many thanks
• Cold weather makes havoc of fuel economy 9 Apr 2013 (Forum)
  My S-Max (diesel auto) has averaged 33.4mpg since the day it arrived with 11,000 miles on about three years and 29,000 miles ago.  I reset the trip...
• peugeot 206hdi - car will not start when cold 15 Jan 2013 (Forum)
  my peugeot 206hdi 55 plate will not start when cold i have fully serviced it (no sign of metal fragments in fuel filter) changed the glow plugs/relay fitted a new battery and it still refuses to start i replaced the starter aswell, this morning i sprayed a small amount of easy start into it and it fired staright away could this be a fuel pressure problem?
• Ford C-Max 2008 1.6 TDCI zetec - Engine Malfunction code 5 Nov 2012 (Forum)
  Engine malfunction message suddenly appeared after filling with diesel. Thought that I had put the wrong fuel in but no it was actually diesel that went in Stopped the C-max and when fired up again, the message reappeared The engine was running as normal, and was wondering whether there is a sensor that could have been disturbed as we gone over a large speed bump earlier in the journey Travelled back from Edinburgh to Notts with the message still there, but there was no lose of power or lose of fuel effiency Does anyone know what it could be The C-Max has done 80k in mileage    
• peugeot hdi - peugeot 306 hdi cutting out after 2 mins 31 Oct 2012 (Forum)
  I am logging this for my dad   He is working on the above car and it keeps cutting out after running for 2 mins, coming up with code p0230 on an rac scanner So far he has : changed fuel pump in tank changed high pressure pump on engine changhed fuel filter housing changed high pressure rail and switch chnaged ignition module ecu has been checked by auto electric place had injectors checked by diesel specialist changed crank sensor changed cam sensor the problem persists can anyone offer any advice   many thanks  
• 2001 Vauxhall Vectra 1.8 LS (Engine: Z18XE) - Engine Control Management Light 28 Oct 2012 (Forum)
  He's just said I need two fuel injectors & the units that plug on the injectors & spark plugs (with nice little drawings of the units needed) Anyone know there official names??? Thanks.
• Any - Official fuel consumption confusion 21 Jul 2012 (Forum)
  In the preview of the 4th gen Honda CRV, HJ declares: It has to be emphasised that Honda is probably the most ‘honest’ manufacturer over...
• FIAT Grande Punto - Over fueling 23 May 2012 (Forum)
  1.9 multijet. Had all 4 injectors removed and overhauled, tested then refited. This Fixed the misfires and erratic idle. But iv noticed that my mpg has...
• Audi 80 Mk II - Engine cut out. 13 May 2012 (Forum)
  It will bimble along at 30  or  70 mph but hit the gas and the car starts to jolt to what seems like fuel starvation.  I am  reasonably competent with a spanner so what I am asking is , can anybody suggest a checklist that I could do ( fuel pump filter etc)  before I find a mecahnic and wait in a the que for a repair.
• Ford - All - Ford Endura DE 1.8 non-start 14 Nov 2011 (Forum)
  This at first did not achieve anything, BUT then a split was spotted in a small hose on the drivers side of the block. It was taken off, and when cranking fuel started to sputter from it. The end was snipped off, and it was re-attached to the spigot. Started first go. :o) I can only assume that was a diesel supply/return line, and the split had caused an air lock/fuel to return to the tank.
• Ford Focus 1.8 Zetec Petrol - Ford Focus (2000 X reg) Running Lumpy 27 Aug 2011 (Forum)
  Hi, My focus has started having a problem where it runs lumpy,the symptoms I have are: Fuel Gauge is inaccurate and only moves between 1/4 and 1/2 When petrol tank is fuel the car feels like it's holding back above 5,000 RPM When petrol is low the car won't gain any power when starting uphill and just limps, this also happens when driving normally and can be difficult to start.
• Mileage and the subsequent panicking 3 Jun 2011 (Forum)
    This thread is by way of The_Grouch's 'how many miles...' thread.  How far can you get AFTER your fuel light comes on or your needle is at zero? This'll be akin to a straw poll of various marques.  My Mazda's fuel gauge is terrible and I am too afraid of breaking down on my commute to let it drop below 1/6th of a tank.
• Mercedes-Benz E-Class W123 - Mercedes W123 Pierburg 175CD Carburettor 14 Feb 2011 (Forum)
  I have a 1985 W123 running on M102 2.0 engine on Pierburg 175CD carburettor with a red damper cover. I notice that my car is severely underpower and heavy on fuel (less than 18MPG average). Also, when i accelerate in full, there will be a lot of black smake coming out from the exhaust. Ive adjusted the air/fuel mixture on the warm water autochoke but is still the same.