I have been running my 2002 Jetta TDI (and my 93 MB 300d) on 20% RUG/80% WVO for over a year now with no known issues. I just bought on 04 TDI Jetta and upon filling with my first tank of WVO/RUG it smoked like crazy and stalled out and basically won't stay running. I had to pull all of the full out with my Mightyvac oil extractor and fill with 100% diesel to get it going again.
Does anyone have any theories on why this didn't work? Did they do something different to the injection pump, lift pump, or nozzles between 02 and 04?
Does the '02 TDI have a diesel particulate filter? If not, then that could be an issue why the '04 doesn't like it. My '04 TDI has one. Diesel engine cars with these filters, especially the newer models, do not do well with WVO and/or biodiesel.
These damn filters do not do any good, and cause the use of more fuel. They were installed because of the All Knowing Environmental regulation idiots in California. The particulate filters were not made mandatory on diesel engines until about 2005-2006.
Project23D, I think you should change the wording 'if not' to 'if it does' with regard to the DPF. Jim.
If not, then that could be an issue why the '04 doesn't like it. My '04 TDI has one. Diesel engine cars with these filters...!!!//
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Actually, these filters do an extremely good job of what they are designed to do.
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