Right, OK thankyou. I never said that I know best, I'm just interested to find out stuff that I didn't know :)

Either really. I managed to get the oil up to about 100C before it went into the injector pump. The performance certainly wasn't what it was on proper diesel, but it worked reliably enough over a long period of time and many miles. I did put the occasional tank of diesel and injector cleaner...

@julianf - that was my theory in heating the SVO up as hot as I could get it (about 100C) to reduce the viscosity. @discomania - what's your knowledge of *hot* SVO as opposed to ambient temperature gloop?

Useful info, Discomania, thanks.

(a) I don't have a chip pan and (b) I don't have a diesel car any more so don't run veg oil and haven't for years. I'm just interested to get to the bottom of the theory behind your assertion firstly that veg oil kills injection pumps and then that it only kills rotary pumps. I can see the...

OK. So to take each point in turn: (1) Contamination. Fair point, if you put dirty crud through there - but if it's clean and dry (difficult with waste oil, but easy with clean canola oil) then I see no problem (2) Lubrication. Veg oil has the lubricating properties of DERV. Back in the days...

I'll ask my favourite question: "Why?"

I commuted 800+ miles a week for several years on SVO. Like I said above, the Bosch inline pumps seem to cope with it, rotary pumps like the Lucas CAV will have problems and suffer broken shafts due to the increased torque of turning them on COLD veg oil. The trick is to heat it to about...

I came across this thread whilst looking for something else, but.... I experimented with biodiesel a while ago, not with a Land Rover but with a Mercedes E300 Diesel. Making the biodiesel is messy and smelly and in the end I decided that I couldn't be bothered and ran on straight veg oil (SVO)...