QUOTE (pedrodan @ Nov 4 2009, 12:19 AM)

At 90p a litre you are getting 33.3 litres for £30 which equals 7.33 galons (4.546 litres to a Uk gallon) 200 miles divided by 7.33 = 27.28 mpg.
Do you preheat the oil or just run it as it is only you may encouter some problems in the colder weather. I have made no changes to my 2001 2.5dlx and run 70% veg in the summer and 50% in the winter. If you have access to a cash and carry you should be able to get a better price for the oil. Our local sainsburys sell it at £2.55 for 3 litres which works out at 85p a litre i'm lucky as my wife is a manager for them so i get staff discount on top.
On a mix i get around 29mpg i do make sure i change all my filters every 5,000 miles and engine oil as the boffins claim this can help improve economy by 10%.
Simon.
hi there could you help me I have bought a desiol 1.4 i20 and I have been thinking about putting in some bio deisol do you think its safe to do so I know I might need to change the filters but dont no if I should say any thing to hyundai about it. because they say no but did not say why so make's me think it might effect my 5 year warr