[unending thunder]

A good site to start is www.biodiesel.org which lists all the US sites where biodiesel can be bought(and useful links). Or A Google search including" vegetable oil, diesel, recipe" will come up with lots of home recipes.

Basically you make sodium methoxide by mixing methanol and sodium Hydroxide(lye in US) add to new or used vegetable oil (this is called tranesterification which breaks down longer fatty acid chains into more flammable shorter chains). Ideally this needs washing with water to remove other waste products.

Mfg cost in US is + - $1.50 per gallon (sells at approx $2.50 at the pump) but this is attractive in UK where diesel is $7 per gallon
Biodiesel also burns less CO2, produces less particulates (cause of asthma)and if made from used cooking oil (ex McDonalds or wherever)saves landfill sites.

It can be used for static diesel or vehicle engines but you need to remove rubber hose fittings and substitute with plastic, or rubber may rot. Adding 20% by volume of petrol diesel should resolve this.

Beware. Sodium Hydroxide and methanol require special handling (gloves, masks, ventilation etc.,)see COSSH rules in UK.

What's the drawback, I hear you ask?
The Gubment loses munny!

[Prodigal Son]

but this is attractive in UK where diesel is $7 per gallon

I'm not sure how you figure diesel is $7 per gallon. I just cashed a check in USD yesterday and the exchange was about $1.60 per pound sterling. From the article it says diesel is 72 pence per liter. There's approximately 4 liters in the gallon (not exact- but the small difference won't affect this equation). So we're looking at 2 pounds 88 pence per US gallon (imperial pint is 20 ounces). You do the math you come up with $4.60 per gallon of diesel. Even if you used imperial gallons it would only be $5.32 or so.

[Arthur Wildfire! March]

Wow. Thank you for the in-depth commentary! I keep checking in to make sure this wasn't a hoax. Too strange to believe. Not only the cooking oil fuel, but also the liberal reaction. Laughing FReegards....