Bio Diesel

[T-Cut]

Originally Posted by Roverron

I'm not convinced that the pressures aren't relevant. After all lubricating oils need 'extreme pressure' additives to cope with camshaft and transmissions. So has anyone compared the lubricant ability at these pressures of diesel, biodiesel, svo and wvo?

Sorry, I misunderstood your comment about pressure. Yes, simple veg oil films will have lower performance at extreme pressures and nowhere near as effective as mineral lubes formulated with EP additives. However, castor is a widely recognised engine lube as well as a 2-stroke fuel additive. I believe Castrol and Castrol R products are/were based on castor oil (the 'R' is derived from 'Ricinoleic acid' found in castor oil). See:http://en.wikipedia.org/wiki/Castrol

Is Castor oil not carcinogenic or toxic or have some other health issues?

Refined Castor Oil is edible and is used in lots of pharmaceuticals e.g. Zinc and castor oil cream for baby's bums. The castor bean itself does contain a toxic material called ricin.
See http://en.wikipedia.org/wiki/Ricin.
(Remember the Russian bloke who was killed with an umberella tipped with a ricin pellet?)
See:http://news.bbc.co.uk/1/hi/uk/2636459.stm

The ricin is easily removed to give edible castor oil. It's used in engine lubes so I wondered if it had ever been tried as a biodiesel type fuel. I've made methyl ricinoleate and the methyl rape oil esters many times in the lab but they weren't intended as fuels. I've worked on jet engine lubes but not diesel lubes/fuels.

TC

[JohnDotCom]

Originally Posted by david2000

how can you tell the diffrence between bio diesel and heavy oil
my rover 75 tourer diesel isnt running correctly and this has happened since i filled the tank up a fortnight ago in the morrisons in carmarthen
my friend took a sample out and it was green in colour and he remarked that it looked less dense than normall diesel plus he remarked that it had a diffrent smell and also smelt and looked diffrent comeing out of the exhaust, can any one advise

all the best
david

Check what you are Putting in David.
Some Morrisons are now offering BIO Diesel but it is marked on Pumps.
Someone with more Knowledge of Colour etc will be along shortly.

[cantabro75]

I am runnig my 75 on Biodiesel at 20% and 30% since 14 mounths ago, and no problem at all, service at Rover was done 2 ,mounths ago and no problem was detected
For your info, in Spain ( and many EU countries) all Diesel has 5% biodiesel,