What's the difference in running "pure" veg oil and "sunflower" oil

[clayton306]

Is there a specific pump you need for this - I was led to believe there are two possible types - Bosch and Lucas.
But the seals on the Lucas wont last.

My has been at this for a while on Audi's - he has a preheater tank for Winter time and also he recommended adding some diesel to the mix to keep the tank circulating....
I've done this before with a Citron BX estate with 100% ra*e seed iol and it was grand - we called it the batter burger cos of the smell from behind......