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• Experience of K&n Filters 14 Feb 2004 (Forum)
  I am considering fitting the above air filer to my Nissan Tino 2.2 Turbo Diesel.Has anyone any experience with a Turbo Diesel. Do they improve consumption fuel economy acceleration etc. Any advice would be appreciated.
• Lexus IS200 13 Sep 2003 (Forum)
  The Lexus reputation for reliability is unrivalled, and a model I have always admired, but I understand they are not the most fuel efficient 2 litre by a long shot. I would just like to hear back from anybody in the B.R. with experience of this model amd their m.p.g. figures ??
• Golf GTI revs 12 Dec 2002 (Forum)
  My son has bought a Golf GTI 1991 with digifant fuel injection.When it is returning back to idle the revs drop below normal for a moment sometimes causing it to stall, any tips or clues on how we can remedy this please thanks tonyh
• SHELL, Optimax 23 May 2002 (Forum)
  Any views on SHELL Optimax would be welcome,I drive a SCENIC 1.6 16v Auto, 5000mls on the clock and have seen my fuel consumption go from 32ish to 37ish, performance has also improved, slightly,any downsides? apart from the price.
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  Is a missing heat shield an MoT failure? 28 Jun 2023 (Ask HJ)
  If the rear heat shield is missing is this an MoT fail?
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  Most fuel efficient petrol small SUV? 25 Oct 2022 (Ask HJ)
  What's the best petrol small SUV for mpg?
• Pure ICE fuels vs Biofuel vs EVs debate 4 Mar 2022 (Forum)
  To add to the ongoing debate over the merits (at the moment) of using pure petrol vs 10% ethanol in petrol or just concentrating on EV tech, Jason Fenske...
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  How long should spark plugs last? 26 Nov 2021 (Ask HJ)
  How long should a set of spark plugs last?
• Used diesels 1 Jun 2021 (Forum)
  Had he stuck with a simple petrol version he would’ve spent a couple of hundred quid a year extra on fuel but saved a large four figure sum on repairs. Moral of the story, stick with petrol when buying a cheap used car.
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  How will I know if my car's DPF is blocked? 19 Apr 2021 (Ask HJ)
  If the DPF is blocked in my Ford Kuga, how will I know? What is the cheapest way to deal with the situation?
• Kia Sportage 1.6GDI manual - Fuel consumption. 24 Jul 2020 (Forum)
  Following on from an earlier post where i did "Drive like a Nun" I kept a record over a 1000 miles recently, and overall 39 ish MPG with about 50%...
• Honda CR-V 2.2 I-CDTI diesel - Main relay location 25 Jun 2020 (Forum)
  Does anyone know where the main/PGM-FI relay location is on a 2009 Honda CR-V 2.2 CDTI (diesel).  there should be one (main) relay in the under hood fuse box and another (fuel pump) in the cabin fuse box.  But both fuse boxes do not have either relays.  this is the cabin fuse box. It only has 1 relay for the power windows. The starter cut and fuel pump relays are missing...
• MG ZS 2017 - ! year on. Turned out quite nice..... 18 Nov 2019 (Forum)
  Youngrovergirl likes the seats, Bags of room inside, space for the essential full size spare wheel. Used once...Fuel economy is entirely acceptable for our usage, seems to be a bit better with 11,000ish  miles total on the car now. No further problems and the (very) minor niggles consigned to History. Car doing what i bought it for, and to join the debate in the other post, it does seem to be slightly better on economy on premium fuels, but the engine definitely runs  better on premium 98.
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  Is there a petrol hybrid estate you would recommend? 30 Aug 2019 (Ask HJ)
  I have a diesel Ford Focus. With all the controversy concerning diesels, is there a petrol hybrid estate you would recommend?
• MG ZS 1.5 manual 2018 - The First 1100 miles. 11 Dec 2018 (Forum)
  Flowing traffic back Dover Colchester.. Fuel Brim to brim, so not unhappy with that. Swmbo happy with seats, adjusted mine seat back inclined a bit more. Large door pockets, using phone via touchscreen easy when driving, (swmbo  called for me)  Lost bit of boot space due to full size spare, but still plenty.
• Ford Galaxy 1.9 TDI Ghia 52 - Ford Galaxy cutting out 5 Jun 2018 (Forum)
  I have taken my car to another garage now who think the fuel pump may need replacing. Has anyone had a similar issue and does this diagnostic seem correct as I don't want to just change parts for the sake of it? Any help would be massively appreciated.
• Golf tdi 2009 1.6 - Injector problem 12 Jun 2017 (Forum)
  My car has been with a garage then diesel specialist for 3 weeks now has had all four injectors replaced, egr valve checked, fuel pump checked, new fuel filter (just in case), pressure valve replaced on rail. It is running but 'lumpy' in idle. No fault codes are showing and car apparently thinks it is running ok. Mechanics cannot tell me what is wrong and seem to say it needs emission reprogramming even though it has run for 3 months and about 1000 miles since the emissions is recall without any issue.
• Land Rover Discovery 2 - Tyre advice etc. 19 Feb 2017 (Forum)
  Hello,  1. can anyone advise on standard equipment or good aftermarket tyres for Disco 2 Diesel auto on a "Y" plate? 255/55 R18 2 The fuel pressure regulator is leaking badly, on the road the engine surges under acceleration, is this a symptom or is it the turbo, it just runs out of steam at 70 mph. 3. Auto box seems to want to change up the gears too early.
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  Why is my Skoda Octavia having trouble starting? 10 Jan 2017 (Ask HJ)
  I have a 2010 Skoda Octavia 1.6 TDI and it won't start. If it does, it starts and is lumpy for a short bit then dies, does not get over 1000rpm. The fuel...
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  Golf GTI instrument lights fading 8 Nov 2016 (Ask HJ)
  I own a Volkswagen Golf GTI (1996 model) I've noticed that the instrument lights are fading. I don't think the battery is to blame, but I have read that...