I haven't been following this thread, so my apologies if this has already been mentioned. Even though it is not just a "simple" fuel-saver, This months FastCompany magazine has an article on a guy who has a Hummer with 800HP and does 60mpg, running a modified diesel engine with a mixture of diesel/biodiesel and hydrogen. I don't have the magazine here so I'll have to paraphrase, "...all of the cars I have modified, were modified with off the shelf parts made and/or used by the big car manufactures today, so it is not "impossible" as they say, they just don't want to do it..." If anyone of you is interested in having your car modified, the price tag is around US $28,0000, which includes the brand new diesel engine. -Mario ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist