Originally Posted by codprawn
Yes it can be done at home. Quite easily. Of course to use it legally in your car or soon even in your boat you have to give the government 27p per litre!!!
There have been changes to the rules recently, although it's still not clear, but if you used to be registered to pay the tax to run your car on a mix of veg oil and diesel, you no longer have to pay this tax if you use less than 2500l of biodiesel a year, those who used to be registered becasue they used a veg oil and diesel mix, are being de-registered.
But I'm no expert, and it's still not 100% clear.