Biodiesel
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From: Denmark
Mercedes-Benz 2006 W211 E320 CDI Avantgarde stationwagon
Biodiesel
I'm thinking about using some biodiesel for my car(Look in signature) does any of you other diesel owners tried this? 
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Best Regards
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From: little rock,ar
E-320 Bluetec
MBUSA only warrants to 5% bio diesel here in the US. I have used the 20% a couple of times and have had no noticeable harm and what I thought was increased mileage. Most folks will say that biodiesel has increased lubricity vs the ultra low sulfur diesel and that stands to reason that you would see an increase in mileage. Most times I just use ULSD at our local Valero cause it's about 40¢ cheaper than the stations that carry bio diesel.
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From: Hunterdon County
'06 E 350 4matic wagon; '05 E 500 4matic sedan; '09 S550 4matic
My brother in law out in Oregon used it- until he broke down and had to get towed in. MB wouldn't cover the repair because it was caused by uncovered use of biodiesel. He stopped using it.
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From: Bay Area, CA
09' E320
MBUSA only warrants to 5% bio diesel here in the US. I have used the 20% a couple of times and have had no noticeable harm and what I thought was increased mileage. Most folks will say that biodiesel has increased lubricity vs the ultra low sulfur diesel and that stands to reason that you would see an increase in mileage. Most times I just use ULSD at our local Valero cause it's about 40¢ cheaper than the stations that carry bio diesel.
Most folks will tell you bio changes combustion timing resulting in a quieter idle. This is often confused with lubricity which bio does increase to some small extent.
FWIW - I see a 10% reduction in economy using commercially B99 as compared to D2.
Note my engine is not a CDI.
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06 E320 CDI
I had a 99 E300 that I ran B99 pretty much exclusively for a few years with no problems at all. CDI now and I run about B10 now with no problems. It is a confidence thing and understand that. I often lease Prevost buses and run biodiesel in them with the owners consent of course.
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From: Bay Area, CA
09' E320
I've also had no prob with my 99 using B99, other than probably hastening the failure of fuel line orings and the 10% drop off in power and mpg's.
The CDI I6's and Bluetec V6's don't seem to do as well though.
The CDI I6's and Bluetec V6's don't seem to do as well though.
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From: Atlanta, GA
1987 300 SDL
I have used 50% BIO with no problem, but my car has the old engine tech. Despite noticing no problems, I have decided to run 15%-20%. The lubrication is excellent when mixed with regular diesel (low sulfur) nowadays. The sulfur adds to the lubricating properties, which this new LS diesel has less. With that in mind, running a couple of gallons of BIO Diesel per tank is not a bad idea as it will lubricate better. B5 is better than no BIO at all. Interesting that consumers use 10% ethanol gas (mandated by US now), but only MB authorize 5% BIO diesel. I wander what they will think if B10 is mandated by DE or EPA. Here in San Antonio (BIO diesel is $1.70 / Diesel is $2.06 per gal).
Remember that temperature plays a big roll in BIO D, so do not use high concentrations in the winter time or when temperatures are near freezing. However, B5 is safe even during the winter time...
Remember that temperature plays a big roll in BIO D, so do not use high concentrations in the winter time or when temperatures are near freezing. However, B5 is safe even during the winter time...
Last edited by Berde; Apr 30, 2009 at 05:40 PM.
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From: Federal Heights, CO
1982 300D VNT, 1980 240D 3.0T, 1982 300TD
Biodiesel cannot handle the extreme pressure of common rail engines, thats why MB does not support more than 5%. What works with old IDI engines does not apply to CDIs.
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Joined: Jun 2008
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From: Bay Area, CA
09' E320
Goat Pellets!
The first diesel engine was designed to run on peanut oil by Rudolf D.; no manufacturer since then has designed a production engine for THAT fuel.
Your statements would be factually correct with the caveat "For a little while,".
The first diesel engine was designed to run on peanut oil by Rudolf D.; no manufacturer since then has designed a production engine for THAT fuel.Your statements would be factually correct with the caveat "For a little while,".
