What is a good Bio-Disel Car?

Answer 1

That depends on what you are referring to as 'Bio-Diesel'.

If you are referring to either commerically produced or home processed oil, then any diesel vehicle will work just fine.

But, if you are actually referring to WVO or SVO which is running Waste Vegtable Oil or Straight Vegtable Oil unprocessed in your motor. Then you need to find and older Indirect Injection motor using an injection pump. You add one of the kits for straight oil.

Answer 2

Old 1980's diesels from VW and Mercedes work best for homemade biodiesel. Newer cars have far too much electronic nanny "garbage" and things like very precise direct fuel injection systems on them. New cars will not run properly for very long on homemade biodiesel unless you REALLY know what you're doing when making the biodiesel. Unless you are a very skilled chemist with an advanced lab and instrumentation chances are you won't be able to formulate the biodiesel to be compatible with newer diesel cars for very long.

If you're talking about running biodiesel available at gas stations (big truck stops sometimes offer it on major US highways), you can use any diesel car, new or old, to run it. Biodiesel refineries have the ability to formulate biodiesel fuel that is compatible with any diesel engine, new or old.