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Change of Diesel Fuel, Remarkable Difference

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  • #16
    Originally posted by bluey View Post
    I figure if any particular brand of diesel has an additive package with a slight weakness, then using one brand over time could result in eventual injector clogging, because whatever can build up that is not removed by a certain additive will continue to get worse.

    From that perspective, changing brands regularly could prevent problems.

    Alternatively, we need some good way of non-invasively measuring injector performance to be able to tell when cleaning is necessary. Can VAG-COM tell that???
    No electronic equipment can tell how good is the injector's spray patern and how much fuel it injects in the cylinder unless it is removed from engine. Since it only calculate injected quantity from the time it is switched "ON". One could only interpret from other masured values and from the smoke from the exhaust, if the injectors are worn out.
    Last edited by Transporter; 30-10-2008, 09:10 AM. Reason: add text
    Performance Tunes from $850
    Wrecking RS OCTAVIA 2 Link

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    • #17
      Originally posted by bluey View Post
      Alternatively, we need some good way of non-invasively measuring injector performance to be able to tell when cleaning is necessary. Can VAG-COM tell that???
      Recording performance and fuel economy over time could give you an indication of injectors not working efficiently (if your driving style and conditions remain consistent).
      2017 MY18 Golf R 7.5 Wolfsburg wagon (boring white) delivered 21 Sep 2017, 2008 Octavia vRS wagon 2.0 TFSI 6M (bright yellow), 2006 T5 Transporter van 2.5 TDI 6M (gone but not forgotten).

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      • #18
        I figure if I keep the injectors maxed out, as often as possible, then there's less chance of them clogging up.
        2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

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        • #19
          Originally posted by cogdoc View Post
          I figure if I keep the injectors maxed out, as often as possible, then there's less chance of them clogging up.
          Well........that sort of driving is supposed to help keep the turbo vanes from jamming up, so I suppose it might help the injectors (and it is fun too !)
          2017 MY18 Golf R 7.5 Wolfsburg wagon (boring white) delivered 21 Sep 2017, 2008 Octavia vRS wagon 2.0 TFSI 6M (bright yellow), 2006 T5 Transporter van 2.5 TDI 6M (gone but not forgotten).

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          • #20
            "...Look officer, do you have any idea how hard it is to avoid soot and buildup in a diesel...."

            What I CAN say is my DPF sure seems to regen about twice a month!
            2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

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            • #21
              Originally posted by cogdoc View Post
              "...Look officer, do you have any idea how hard it is to avoid soot and buildup in a diesel...."

              What I CAN say is my DPF sure seems to regen about twice a month!
              Funny that, mine too.
              But im sure my turbo vanes and injectors would be nice and clean.

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              • #22
                Doesn't suprise me, especially chipped!

                Problem is my front tyres were WELL on the way out at 15k's when I rotated them, and I'm not taking traction off much at all!

                Damn torque!
                2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

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                • #23
                  Went to Shell last tank thought it was ok, went back to BP last night and this morning the other half asked me what I had done last night to the engine??

                  That is conclusive in my book!

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                  • #24
                    Is that comparing Shell with BP or BP Ultimate? Adding Morey's as a cetane improver seemed to reduce smoke and engine harshness.
                    2015 Polo Comfortline 6M + Driving Comfort Package
                    2011/11 Yeti 103 TDI 6M + Columbus media centre/satnav
                    (2008 MY09 Polo 9N3 TDI retired hurt hail damage)

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                    • #25
                      BP Premium diesel fuel only (for me)
                      Volkswagen collector....

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                      • #26
                        how do u tell ? the local bp'z just have Diesel as the label ? ie one bowser, no choice ...
                        MY08 2.0L TDI DSG

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                        • #27
                          If you are filling up in Sydney (or anywhere in Oz except for Perth and Brisbane) then you can only buy "regular" BP diesel. I expect that when they roll it out elsewhere they will relabel the bowsers as BP Ultimate diesel or similar (just like they do with 98 octane petrol).

                          Oh, and it appears that "BP Premium diesel fuel" is available in Michigan (in the USA)
                          2017 MY18 Golf R 7.5 Wolfsburg wagon (boring white) delivered 21 Sep 2017, 2008 Octavia vRS wagon 2.0 TFSI 6M (bright yellow), 2006 T5 Transporter van 2.5 TDI 6M (gone but not forgotten).

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                          • #28
                            I've only ever used BP diesel. I tried Shell/Coles for one tankful after the dealers BP tankful, ran rough and noisey as, never again.

                            a note on BP Ultimate Diesel, must admit havn't tried it yet, but it's only at 36 stations at the moment in brisvegas, and not the ones I use and a few stations are charging a hell of a premium for it - what a turn off.

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                            • #29
                              I've had my dub for about 4 weeks now (2nd hand but well run in) and have used BP premium diesel once and Shell about 3 times. Surprisingly I've had much better economy from the Shell than from the BP. Maybe the difference is felt more when it's more stop, start city driving rather than majority highway, which is what I always do.
                              I've been paying about 1.44 for the Shell and 1.48 for the BP premium.
                              _______________________________________

                              2006 MY07 Golf 2.0 tdi
                              The Highway trundler, will get 1200 km on a tank
                              .......one day.

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                              • #30
                                Linds, not sure what side of Bris you're on, but the BP at ashgrove/gap always has diesel ultimate a few cents cheaper than anywhere else I can find. Was about 141 all this week, as opposed to 143-145 everwhere else. I always take the drive just for the saving per tankfull. You can always continue on and go home via Mt Nebo!
                                Last edited by Greg Roles; 07-11-2008, 07:14 PM.
                                2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

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