COSTCO IS SELLING KTC CUBES FOR £15.59 FOR 20 LITRES OF SOYA OIL
Although not as good as rapeseed oil, soya oil is one of the most common oils used to fuel suitable diesels.
The 20 litre containers are far easier to store n pour than smaller bottles.
Whilst most cars pre 2000 with indirect injection (IDI) will run on vegetable oil fine, PLEASE check that your model will take it first, because it could cause serious damage if not suitable.
Vehicles after 2000, tend to be CDi, TDi, PDDI, TDCi, etc. which are common rail diesels, and vegetable oil is a big no no.