Properly made bio-diesel is supposed to be a direct equivalent for mineral fuel. Many makers ban it because very little home-made "bio-diesel" is to the required BS standard.
With the soaring cost of base plant oil and the methanol and caustic soda making it a very nasty process; properly-made bio is only marginally cheaper.
Before buying/storing large quantities of methanol; check with your insurers and the local council. You'll also need to make proper waste removal arrangements.
Edited by Screwloose on 20/05/2008 at 21:45
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