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What Diesel should I use?

Discussion in 'New A3/S3 (8V Chassis)' started by Daveotto, Sep 17, 2013.

  1. Daveotto
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    Daveotto Well-Known Member

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    [Sep 17, 2013]
    Based on a similar thread about what petrol to use, Would be interested on views on value of using branded diesel v supermarket diesel.

    My interest is more on any improved performance rather than improved economy that I might get.
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    [Sep 17, 2014]

  3. Veneeringman
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    Veneeringman Bazinga VCDS Map User

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    [Sep 17, 2013]
    I always use Shell V-Power Nitro+ Diesel in my Vivaro van it just makes it perform so much better, also I've been told Shell fuel is one of the best you can buy.
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  4. dieseldoug
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    dieseldoug Member

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    [Sep 17, 2013]
    Buy any diesel you want but STAY away from the supermarkets, the filler cap on your car mentions not to use Bio Diesel, some supermarkets have up to 10% Bio Diesel in their tanks. So use garages if you want to pay for the performance diesel over normal it's your choice but I use conventional diesel never used the high bred stuff.
    And of course stay away from the red stuff....ha ha
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  5. stetheo
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    stetheo Active Member

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    [Sep 17, 2013]
    Personally I use the Shell V-Power Nitro+. Never use supermarket i've heard too many bad things..

    I have tried the Shell fuel save vs the V-Power and found i actually get more out a tank of V-Power plus the car feels more reactive on the throttle. Although I don't know if this is just my perception or genuine gains.

    Also my car seems to run more smokey on fuel save or equivelant.. which is nice to avoid.
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  6. yetirider
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    yetirider Active Member

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    [Sep 17, 2013]
    I always use Shell or Esso standard, find its worth about 5 mpg more than supermarket stuff.
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  7. Grahamb
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    Grahamb Member

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    [Sep 17, 2013]
    All ways use esso high, (can not think of the name of it) never supermarket, rather push her to the next pump
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  8. manor13
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    manor13 Active Member

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    [Sep 17, 2013]
    only issues i notice is with morrison's fuel, moved to shell and tesco's for loyalty points as BP points are worth jackS**t
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  9. Sayam
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    Sayam Active Member

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    [Sep 18, 2013]
    In my experience diesel engines in general seem to feel 'happier' on branded quality fuel compared to supermarket rubbish. I only use regular Shell diesel in my current car and will use same in my A3.
    #8
  10. snowfree52
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    snowfree52 Full LED baby !

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    [Sep 19, 2013]
    I've always used supermarket fuel since I have one verye close to my house and never had any problem on any car I had :faint:

    And those includes a higly modified caterham, a lotus Elise, a remapped golf diesel, a remapped Audi S3 ...
    Last edited: Sep 19, 2013
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  11. mjcourtney
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    mjcourtney Well-Known Member

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    [Sep 19, 2013]
    Ditto!
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  12. cemerson
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    cemerson Well-Known Member

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    [Sep 19, 2013]
    Ditto ditto! I'm sure most of this scare story stuff comes from the companies selling the more expensive fuel...
    #11
  13. snowfree52
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    snowfree52 Full LED baby !

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    [Sep 19, 2013]
    I included a list of cars in my post, in case someone said "yes but you only had **** diesel et cetera" :lmfao:
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  14. @udi A3
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    @udi A3 Site Sponsor Site Sponsor VCDS Map User

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    [Sep 19, 2013]
    shell v power nitro. Performs better, less smokey, idles better, more mpg, enough to actually work out slightly cheaper per tank despite the higher cost. I fill up 1-3 times a week, i notice a big difference. Average 7mpg better. Approx 2p per mile cheaper with todays fuel figures.
    #13
  15. frazzeld
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    frazzeld Member

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    [Sep 19, 2013]
    I usually use this one......drive on the back roads :jester:
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    [IMG]http://www.wildingmotors.com/WM%20RED%20DIESEL%201.JPG[/IMG]
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
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  16. MouseGB
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    MouseGB Member

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    [Sep 19, 2013]
    I do 30,000 miles a year so this is important to me. I use Tesco mostly and the civic 2.2 runs fine. It is true that better fuel will give better mpg and run better but there was a survey that said supermarket fuel gave the best performance as the fuel is replaced so quickly it didn't get chance to age. Either way I guess we'll all be doing our own spread sheets.
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  17. smk82
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    smk82 Member

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    [Sep 26, 2013]
    I came across an interesting note on one of the A1 forums regards the octane rating of the fuel (95/98) and how your engine may be tuned to run better on a particular octane rating. Can anyone who has the 2.0TDI (150 or better yet the 185) have a look in their manual/car fuel flap and see what fuel is recommended?
    #16
  18. cemerson
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    cemerson Well-Known Member

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    [Sep 26, 2013]
    Octane of diesel is more in the 25-30 range I think! Sounds like they were talking about petrol
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  19. cemerson
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    cemerson Well-Known Member

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    [Sep 26, 2013]
    15 - 25 in fact, according to wikipedia
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  20. smk82
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    smk82 Member

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    [Sep 26, 2013]
    Oops.. my heads not in the game.. too excited over the fact that my car is now at the dealership! Anyway the point remains, is their a specified note in the manual/filler cap on the diesels recommended a specific type of fuel? Or is it more with petrol engines that this is a consideration?
    #19
  21. cemerson
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    cemerson Well-Known Member

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    [Sep 26, 2013]
    I'll have a look in a minute, I'm going down to my car in a bit. Pretty sure it just says 'Diesel' though.
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  22. cemerson
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    cemerson Well-Known Member

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    [Sep 26, 2013]
    Here you go

    Attached Files:

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  23. cuke2u
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    cuke2u Well-Known Member

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    [Sep 26, 2013]
    No notice there that bio diesel can't be used either...
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  24. cemerson
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    cemerson Well-Known Member

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    [Sep 26, 2013]
    There is, right under where it says 'DIESEL' it says 'NOT FOR BIODIESEL', though I'm sure this means 100% biodiesel...
    #23
  25. cuke2u
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    cuke2u Well-Known Member

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    [Sep 26, 2013]
    Hi, sorry I couldn't see that. I am sure that all modern diesels are able to take a percentage of bio..
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  26. TDI-line
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    TDI-line Uber Post Whore

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    [Sep 26, 2013]
    My 184 TDI has the same sticker as Cemerson's. So no info really.
    #25
  27. cemerson
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    cemerson Well-Known Member

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    [Sep 26, 2013]
    Diesels can run on all sorts of stuff, they are quite tolerant engines!
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  28. markwiggy
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    markwiggy Third Gear

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    [Sep 26, 2013]
    I have used mainly Tesco diesel in my car from new, my last tankful was Shell V-power diesel, It didn't make a blind bit of difference, didn't feel any quicker and I don't appear to have any MPG improvements so back to Tescos for me,I may throw in the odd tankful just for the cleaning properties. My S3 had a liking for V-power, it did make a big difference and was well worth the extra, an extra 8p per litre for the diesel version simply isn't worth it in my opinion.

    Mark
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  29. JohnnyM100
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    JohnnyM100 Active Member

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    [Sep 26, 2013]
    Diesels engines can run on all sorts of stuff but the common rail fuel pumps can't and nor can the rubber fuel hoses.

    Pretty sure that cars in the last 5 years had to be able to cope with up to 10% biofuel long term.

    I am petrol not diesel but I still use Shell V-Power Nitro or (at a push) BP ultimate/Tesco Momentum.

    John.
    #28
  30. Phil-1
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    Phil-1 Well-Known Member

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    [Sep 26, 2013]
    I do over 60,000 a year and use supermarket own diesel. Plus I get the points ;-)
    Never had any problems with it.
    #29
  31. dieseldoug
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    dieseldoug Member

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    [Sep 26, 2013]
    Try that and find out the issues you will have, water will seize your injectors, too much wax in the fuel will cause sluggish performance, not enough wax will cause laqure and cause injectors to stick when hot.
    You will find the fuel filters are 2 micron units to help keep the injection system clean and help you performance stay up.
    Don't be fooled that they will run on anything, even if the diesel is 2 years old the performance will be down and you will have bad starting.
    Last edited: Sep 27, 2013
    #30
  32. cemerson
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    cemerson Well-Known Member

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    [Sep 26, 2013]
    Yes, I said 'all sorts of stuff' not 'absolutely anything' !
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