biodiesel use in 2010 TDI Jetta

[scdvm]

Has anyone had any experience using biodiesel in the 2010 TDI Jettas? Do I need to do any modifications? Can I just change the oil more frequently?

[cvml98]

I just asked my local dealer about the use of biodiesel in VW TDI engines. He sent me a PDF file from VW with the following summary.
In summary:
1. Volkswagen recommends the use of standard
diesel fuel or commercially supplied biodiesel
blends of no more than five percent (“B5”) biodiesel.
2. Never use any fuel, whether diesel, B5 biodiesel, or
otherwise, that fails to meet the latest petroleum
industry specifications or that is not purchased
from a commercial retail diesel pump. If you are
unable to determine whether a particular fuel
blend is B5 biodiesel that meets the latest biodiesel
industry specifications, ask your service station for
more information.
3. Never use any fuel for which the contents cannot
be identified.

[snorlax]

I looked at a house last fall that had a couple of dozen big white plastic drums of biodiesel and used cooking oil stored next to the garage. The daughter had an A4 Jetta TDI and traded it on one of the first '10s. The new car was in the garage requiring a huge repair that was apparently not in the budget. The real estate agent didn't know the particulars, but it was enough proof for me that the pdf that CVML98 mentioned is the real deal.

[chef73]

I live in toledo ohio and i am wondering where to find a station that sells b5 boidiesel?

[TDI2000Zim]

Fads come and go.

But the fact that low sulfur diesel nowadays tends to breed algae, leads me to think that we are now feeding our cars and trucks Biodiesel, whethere intentional or not.

Anyway, all diesel came from lving things in the first place.

[viellen]

I just purchased my 2010 Jetta Sportwagen TDI this week. I did quite a bit of research on using biodiesel with it before purchase but since the post-injection DPF filters are so new (only out since 2009) there's not much "real-life" information out there. Basically, VW warranties the engine for ASTM-certified B5. When I contacted biodiesel wholesalers in my area they all encouraged me to use up to a B20 blend and I've found some sources online that seem to think that would be OK but it's a risk as the use of biodiesel with the DPF system can deplete oil, clog the filter and reduce efficiency. I've sourced commercial B5 in my area and intend to use that and have my oil and filter checked more frequently. I may use up to a B20 blend in the future but am taking baby steps right now since I really can't afford to replace the engine if it goes. Here are some links that might help you decide for yourself:

Diesel particulate filter DPF and Adblue fluid FAQ
Understanding the Post-Injection Problem
VW world’s 1st automaker to warrant B5 biodiesel
2009, 2010, and 2011 VW Jetta Sportwagen (Golf wagon) TDI buying checklist and FAQ (check out the Biodiesel section)

Let me know if you find other info. I really want to use biodiesel but I don't want to risk recking brand new car. :/
-Rebecca

[butch]

I was using bio all most 100% no problems but I quit when they raised prices to match the big spike in price that one summer

[Spoolin]

Is there a site that has a list of all the B5 stations in the country? I'd be interested in throwing some in my new TDI. However I don't know of where any around me are.

[3waygeek]

Try www.biodiesel.org -- it has a list of biodiesel retailers, but I have no idea how up-to-date it is.

[scdvm]

I was wondering if anyone with a post-2009 model has used 100% bio?