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best cars for biodiesel

We're thinking of buying a diesel to run on biodiesel. We'd love to get a light-duty pick-up, but that as a diesel option doesn't exist here in the US. Does anybody have good experience with running their car on it, or know of some good online resources to add to our reseach?


  • edited May 2010
    Are you talking about biodiesel you get from a pump (B5, B10, etc), or are you talking about going around to restaurants and getting/cleaning up their used cooking oil?
  • edited May 2010
    A Mercedes Benz diesel sedan from the 1980's will burn pretty much anything.

  • edited May 2010
    we have a few local businesses and co-ops that process the waste oil into biodiesel, then sell it...eventually, i'd like to be collecting the oil and processing it myself, but that's at least a year off from now. we have no biodiesel at the pump here in CT. well, not that i know of.
  • edited May 2010
    You need to get some info on this, normally using cleaned-up waste oil requires a fair amount of modification, with dual fuel systems for starting and stopping using regular diesel.
  • edited May 2010
    i think you're talking about waste oil that hasn't been processed. Biodiesel is the waste veggie oil (WVO) that has been filtered, cleaned, and processed chemically -- which is easier to DIY than one would think. Biodiesel can be run in a diesel engine at "full strength" (B100) or a blend on petro diesel and biodiesel, like B20. I put up the initial post because some diesels like it better than others...
  • edited May 2010
    OK - folks sometimes confuse WVO with biodiesel. You'll get lots more response in a biodiesel forum, like this:
  • edited May 2010
  • edited May 2010
    Some modern diesels don't take to bio as well as others and can have problems with it. I would be sure to verify that any car/truck I was considering was one that is OK for bio, further that it be the bio you might have access to.

    Remember that continued supplies of your raw bio may not be consistent. You may end up using commercial diesel more often than not.

    That is not to say it is a bad idea.
  • edited May 2010
    Hey, Mike: these guys specialize in biodiesel:

    I've seen a few Mercedes conversions - unfortunately, I've also heard horror stories of motors TRASHED by using waste oil - which is why you see quite a few "used" biodiesel conversions on Craigslist!
  • edited May 2010
    Well, here's that biodiesel/WVO confusion again. Greasecar specialized in vegetable oil conversions, not biodiesel. Seems like the tradeoff is biodiesel, once made from vegetable oil, is somewhat compatible with some existing diesels, while vegetable oil required quite a bit more up front vehicle conversion costs, but then you don't need to convert the vegetable oil to biodiesel.

    Some folks make biodiesel out of vegetable oil with a process using several dangerous chemicals.
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