Best diesel car to buy for running on veg oil?

[Kentish]

As per the title really.

I guess an older common rail diesel is best, possibly normally aspirated too?

And which engine types should be avoided?

[Kentish]

Egbert Nobacon said:

Mercedes W124 250D/300D & 190 250D are a good place to start

Thanks Eg.

I'm not too up on my Mercs and not sure which the W124 series are. Which series and years etc?

How about the old E34 525 diesel - most are blown though?

[Kentish]

which oils can you use then?

old engine oil?

[Kentish]

Parrot of Doom said:

If you filter it, yes, although its nasty stuff to be honest. Also you can use power steering oil, transmission oil, peanut oil, etc.

Seriously?

I was only kidding!

[Kentish]

How about a E36 325tds circa 1995?