newmg said:
Sorry about that, I was talking about WVO conversion kit. By the way, what would happen if I install this on a 2009/2010 TDI?
Also, in your opinion, which VW (year) would be a good candidate for WVO?
Well, I certainly cannot tell you what would happen if you installed a WVO two tank kit on an '09. In a nutshell, it seems that with the regen that occurs in the exhaust of the '09's, extra fuel is injected to complete a burn off of the carbon in the exhaust trap. When running biodiesel, the biodiesel makes its way past the rings and gets into your engine oil, diluting it and leading to polymerization of the oil, raised viscosity, CEL's and who knows what type of damage. A good guess on using WVO would be large amounts of WVO getting into your engine oil, gumming up of the rings, WVO coating expensive exhaust components, CEL's, and who knows what else. While I would love to see a way to overcome this for biodiesel as well as WVO, I am certainly not smart enough nor my wallet fat enough to do the required testing to figure it out
As to choosing a VW for a WVO candidate, I would first ask what level of WVO knowledge you have? There are many people on this forum and others who have been successful with WVO on early Rabbit/Jetta IDI diesels up through 2006 PD TDI engines. There are also a lot who have failed miserably. An early IDI VW is going to be a cheaper initial investment, more tolerant of WVO and simpler to operate. It's also an old car and can turn out to be expensive to bring all the maintenance up to snuff. An ALH and PD TDI will obviously be much newer and more "refined" but is definitely not as forgiving when it comes to WVO.
Either one though will require you to invest a lot of time intially to research how to properly filter and dewater your WVO (you already have a WVO source lined up, right?
) as well as the type of kit you want to install. You will want to properly dewater your WVO and filter it to 1 micron. If you are looking at a single tank kit, Elsbett should be the only one on your list. A proper two tank kit, will have at least two, 3 port valves, a heated filter, heated tank, heated fuel lines, a heat exchanger (like a flat plate heat exchanger, FPHE), and a temp gauge at minimum. Frybrid and Greasecar are good starting points. I recommend installing it yourself so you know your system and how it operates. Also make sure your engine is in 100% mechanical shape before starting to run WVO. Oil change intervals will also need to be cut in half.
Personally I read everything I could and spoke with people actually running WVO for over a year before I decided to jump in. I started with a cheap, 81 Rabbit as a test mule to prove to myself it worked. Once I was confident that I could do it, I moved up to my 02 Jetta. It is definitely not for everyone. If you want to do it to save money because you are cheap, it's not a good idea. You have to be willing to make it your hobby and dedicate the time it takes to be successful. No cutting corners or you will fail.
If you are still enthusiastic about WVO after reading this, then it may be for you. There is a thread in here titled something close to "Should you burn WVO" that you should read as well. Good luck and welcome to TDIClub.
Edit: found it. Created by Philngrayce:
http://forums.tdiclub.com/showthread.php?t=215038