Hell, it'll drink old fry oil if ambient temps are warm enough. And ATF, and kerosene, and jet fuel, and...

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RIP:
2011 E350 BlueTEC, Schwartz 81k (totaled by uninsured drunk driver)
1964 Unimog 404.1 (wrongfully towed by the city)
1994 E320, Brilliantsilber 208k (transmission shuffled off after sudden catastrophic fluid loss)
1982 300D, Silberblau under a blue repaint 256k (sold for parts)
1995 E320 Polarweiss, 131k (sold for parts)
1995 E300D Polarweiss, 287k (totaled by drunk driver)

Yeah those are all still biodiesel. Biodiesel isn't defined by feedstock, it's any transesterified lipid of biological origin suitable for combustion in compression-ignition engines. You can make biodiesel from all those things.

It sounds like the distinction you're making is between waste-manufactured biodiesel and new-manufactured biodiesel from rapeseed or corn oil or what have you. I suspect "renewable" is either marketing or a legal term, not a technical one.

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RIP:
2011 E350 BlueTEC, Schwartz 81k (totaled by uninsured drunk driver)
1964 Unimog 404.1 (wrongfully towed by the city)
1994 E320, Brilliantsilber 208k (transmission shuffled off after sudden catastrophic fluid loss)
1982 300D, Silberblau under a blue repaint 256k (sold for parts)
1995 E320 Polarweiss, 131k (sold for parts)
1995 E300D Polarweiss, 287k (totaled by drunk driver)

The distinction that I am making is between the process by which it is created. “Renewable Diesel” is something completely different than fatty acid methyesters aka Biodiesel. Both can be made out of the same types of feed stocks But the advanced nature of renewable diesel production allows for much lower quality feed stocks to be used.

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Current fleet
2006 E320 CDI
1992 300D - 5speed manual swapped

former members
1984 300D "Blues Mobile"

1978 300CD "El Toro"

Incorrect.

Such a convincing argument.

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CENSORED due to not family friendly words

I used the same level of citation as you.

The thread title scared me for a minute. I thought it said: Propel diesel no longer available in the USA. Of course, it’s barely available now, I just happen to be living in the right island for it.

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Te futueo et caballum tuum

1986 300SDL, 362K
1984 300D, 138K

There are a couple of bio diesel aka soybean oil plants in Iowa not far from my farm. Locally you can buy a pretty good mix - b15, I believe, in summer and only b5 in winter - if memory serves. Iowa has no emissions testing rules or any of that and not many people anyway, fwiw. I pour a little veggie oil in my old 603 and it seems to make her purr. At least it quiets the injector pump. I assume that lubrication in the older engine is a plus.

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DS
2010 CL550 - Heaven help me but it's beautiful
87 300D a labor of love
11 GLK 350 So far, so good
08 E350 4matic, Love it.
99 E320 too rusted, sold
87 260E Donated to Newgate School
www.Newgateschool.org - check it out.
12 Ford Escape, sold, forgotten
87 300D, sold, what a mistake
06 Passat 2.0T, PITA, sold

Las Vegas NV

I'm sorry that your memory is limited to your imagination. If you read back you'll see you provided no references to your claims, so I was following your level of commitment, which is none.