By the way
Don't just go out and put cooking oil in your car. It tends to work best on older diesels with mechanical injection systems - generally if you have a Bosch injection pump, it'll work.

I've actually run this in three cars with Bosch pumps and they've all been fine.

Trouble is, as Cecil pointed out, cooking oil is now more expensive than diesel. Unless you recycle used stuff.
(Half of Stephen Fry's right buttock pissed on your dog on, Fri 24 Oct 2008, 9:45, 1 reply)

Presumably it's still cheaper from a cash-n-carry
in giant 20l cans?

Edit: Cheapest oil from Booker is about £1 a litre. So now oil has come down again, diesel is marginally cheaper. Damn.
(sabre-tooth monkey, Fri 24 Oct 2008, 9:54, closed)

Tesco
Some largers branches of Tesco do it in 15L drums for 98p/litre - which goes straight into my £100 205.
Best to use a splash of diesel in there to help with start up problems - as the oil has a higher flash point it sometimes takes a little encouragement to get going, but once the engine has warmed up you should be alright.
(spankfrencer, Fri 24 Oct 2008, 10:01, closed)

'course, if you're friendly with your local chippy
or other purveyor of deep-fried junk, you might be able to relieve him of his used cooking oil. Strain out the bits of dead fish and it should work just as well...
(julius, Fri 24 Oct 2008, 13:19, closed)

^
Diesel for a quid a litre? Where? Unleaded is 99.9p/litre and diesel ~£1.13/litre in Hull.
(SalRossi Laughter the best medicine? Nurse, penicillin....., Fri 24 Oct 2008, 20:50, closed)