http://www.ebony-solutions.co.uk/
Example of availible bio-fuels -
"What is e-diesel?
e-diesel is a clean-burning alternative to diesel fuel. It is refined from vegetable oils instead of Crude Petroleum and is commonly known as Bio-diesel.
e-diesel is a truly renewable fuel, which produces no net CO2 emissions. It has much better lubricity and a higher Cetane Number than diesel fuel, and can be used in all diesel engines without any modification.
Customer feedback reports that even adding small amounts of e-diesel to conventional diesel improves fuel lubricity thereby extending engine life, and increasing fuel efficiency.
e-diesel can be blended with conventional diesel in any concentration. The blend level depends on economics and availability.
Typically, e-diesel is supplied at 100%, 20% or 5% concentrations blended with Ultra Low Sulphur Diesel.
e-diesel is completely bio-degradable and far less toxic than petroleum diesel.
Ebony Solutions have been manufacturing and supplying e-diesel in the UK for 7 years, to a range of local authority, commercial and bluechip customers."