Jinkster
Just remember, it doesn't matter wether you use veggie oil or Jet - A1 in your car you still have to pay our Illustrious Chancellor and his government the required duty! Ask our local chip shop owner as well as several farmers in deepest darkest Wales. They all got done last year by the revenue men. Apparently the exhaust fumes are a dead giveaway to the highly trained noses of the revenue men who then proceed to extract back duty and fines from their hapless victims. These guys make the Gestapo look like angels!!
Good luck and watch yer 6!
CC