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  • Biodiesel and your new TDI.

    Some people on this forum think that I'm "antibiodiesel" well I'm not more antibiodiesel than the article in the link below.

    "Before you fill up your new TDI fuel tank with biodiesel".



    Last edited by Transporter; 14-12-2008, 03:55 PM. Reason: ad link
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  • #2
    I believe the manual gives just such a warning but also permits the use of biodiesel which meets the appropriate fuel standard. (In short, B5.)

    Provided we are not duped by the oil companies, we shouldn't have a problem in this country.

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    • #3
      but now with diesel sitting at under $1.40 a litre and dropping more each day its becoming less of a saving. the risks far outweigh the gains IMO.
      currrently... MY10 GTI | DSG | Candy White | Sunroof | 18's | BT | MDI
      previously... MY08 GT TDI | DSG | Reflex Silver | Sunroof

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      • #4
        Well the day my warranty runs out, I hope to never use Dino again.
        Sure you need to know what you are doing, but a properly set up car and biodiesel plant is definately my future. Dutchaussie is writing a book of his european experience, and I'm on the "want to purchase list". It's WHY I'm planning on hanging onto this car long term, and I can't think of a greater joy than to be able to drive past servo's and stick it to the man fuel wise.

        Shame they will still get the oil use!
        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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        • #5
          Originally posted by cogdoc View Post
          Well the day my warranty runs out, I hope to never use Dino again.
          Thats what i had hoped to do - there's a servo on Middleborough Rd not far from Burwood highway here in Melb., that sells biodiesel. Put through a few tanks - by the time the second tank was 3/4 of the way empty it was getting hard to start. (this was after topping up occasionally with BD and changing the filter). Went back to dino after 1 tank was back to easy starting.

          There is obviously a quality problem, my hunch is that unless you have BD that is up to a standard the quality may be suspect ie use no more than 5%. The problem is where was the base stock from? Oils, tallow? Was it washed properly?

          Unless u do it yourself, without testing you don't know what you have.

          Regards

          David

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          • #6
            Making biodiesel is really easy:
            -Filter fryer oil with a calico bag
            -Dissolve napthaline (crushed moth balls) into it
            -Filter again
            -QED
            sigpicMy NA 2.0L 8v Mk3 Golf is faster than my 174kw twin turbo Supra. V8 utes and over modified Skylines hate being overtaken by old Golfs

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            • #7
              One of the forum members here powers his vehicle with Biodiesel and I think he makes it to.

              No problems...........so far to my knowledge.
              - Ben

              1961 Karmann Ghia Coupé - 1993 Golf Cabriolet - 2006 Golf Comfortline 1.9L TDI
              2008 Jetta 2.0L FSI

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              • #8
                Originally posted by phaeton View Post
                One of the forum members here powers his vehicle with Biodiesel and I think he makes it to.

                No problems...........so far to my knowledge.
                I need a bit more prove than one member here and there to experimenting with his car before I would use biodiesel.

                Something like driving 200,000km using the biodiesel only and under different driving conditions in different climates on more than just one car, than

                after that 200,000km dismantle the engine and check the wear on the components and compare to the one driven on the petroleum diesel.

                20 engines in the testing like that could give some reasonably accurate data.

                But the problem is that the quality of the diesel fuel is not guaranteed, so even such test wouldn’t be accurate.

                P.S. Buying biodiesel instead petro diesel when there is not saving (actualy the engine is using more of it) is non sence.
                Any car fitted with DPF cannot use biodiesel anyway.
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                • #9
                  Originally posted by hokenmk3 View Post
                  Making biodiesel is really easy:
                  -Filter fryer oil with a calico bag
                  -Dissolve napthaline (crushed moth balls) into it
                  -Filter again
                  -QED
                  Dutch aussie and a few others make there own with no complication.

                  I would be interested to know there thoughts on your Bio recipe as I think its a
                  bit more complicated than that to make.

                  Have you actually tried this recipe.

                  Comment


                  • #10
                    Originally posted by neil View Post
                    Dutch aussie and a few others make there own with no complication.

                    I would be interested to know there thoughts on your Bio recipe as I think its a
                    bit more complicated than that to make.

                    Have you actually tried this recipe.
                    Yeah but only in a 4.2L Nissan Patrol so there is no hurting that thing. It runs on just the oil with no moth balls so it is not really any indication... although without the moth balls chewed the fuel filter and with the mothballs seemed not to.
                    sigpicMy NA 2.0L 8v Mk3 Golf is faster than my 174kw twin turbo Supra. V8 utes and over modified Skylines hate being overtaken by old Golfs

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                    • #11
                      Transporter,

                      that first link refers to all the major fuel injection manufacturers agreeing to bio-diesel at no more than 5% in regular diesel. This is true. I have seen the actual statement that is signed off by Bosch, Delphi, Denso, Stanadyne etc.

                      Diesel engines love bio- diesel. Fact. Diesel engines can be made to run on a lot of different things. The difficult bit is getting it through your injection system. Early mechanical fuel injection pumps seem to be able to handle bio better. Common rail injection equipment does not seem to handle it as well. Contaminate your common rail system and you will need to clean the tank & lines, replace filters, replace pump & high pressure pipe. Replace Rail, injector pipes and injectors. Probably about $7-10,000 including labour to do this repair.

                      At this point in time I would advise against bio-diesel. I'm sure it will be a good thing in the future with more development and the injection manufacturers improvement in their product.
                      sigpic
                      GTI MY16.5 PURE WHITE | LAKIN PLATE HOLDER | TINTS |

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                      • #12
                        Originally posted by Ozram View Post
                        Transporter,

                        that first link refers to all the major fuel injection manufacturers agreeing to bio-diesel at no more than 5% in regular diesel. This is true. I have seen the actual statement that is signed off by Bosch, Delphi, Denso, Stanadyne etc. .
                        They probably didn't have a choice.

                        At this point in time I would advise against bio-diesel. I'm sure it will be a good thing in the future with more development and the injection manufacturers improvement in their product.
                        That makes us 2.
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                        • #13
                          A point that probably should be made here is that none of our smaller VW Diesel engines over here are common rail yet (as far as i know.. The 2009 stuff might be different). We're still all running PD injection.

                          This goes for all the 1.9L TDI's. The 2L TDI's including the Golf GT.

                          So that means that nobody has an engine running ridiculous fuel pressures and therefore it's not as critical. (I however will not be running Bio in my Caddy until it is out of warranty and i can be sure it's 100% safe).


                          Not sure about the bigger stuff.. Anyone fill in that blank?

                          APR Tuned | KW Suspension | INA Engineering | Mocal Oil Control |
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                          Email: chris@tprengineering.com

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                          • #14
                            Originally posted by Preen59 View Post
                            A point that probably should be made here is that none of our smaller VW Diesel engines over here are common rail yet (as far as i know.. The 2009 stuff might be different). We're still all running PD injection.

                            This goes for all the 1.9L TDI's. The 2L TDI's including the Golf GT.

                            So that means that nobody has an engine running ridiculous fuel pressures and therefore it's not as critical. (I however will not be running Bio in my Caddy until it is out of warranty and i can be sure it's 100% safe).


                            Not sure about the bigger stuff.. Anyone fill in that blank?
                            Bio diesel is as bad for PD injection as for common rail.
                            Performance Tunes from $850
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                            • #15
                              Originally posted by Preen59 View Post
                              A point that probably should be made here is that none of our smaller VW Diesel engines over here are common rail yet (as far as i know.. The 2009 stuff might be different). We're still all running PD injection.
                              The new Mk6 is common rail.

                              I run the PD system in my Caddy. I will still not put bio anywhere near it, primarily because I know what it can do to the newer injection systems and I know how much they cost to fix.

                              If the manufacturer says only 5% and actually puts a sticker on the fuel flap saying "no bio" and you still want to use it then you are asking for trouble IMHO.
                              sigpic
                              GTI MY16.5 PURE WHITE | LAKIN PLATE HOLDER | TINTS |

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