> If you think about it, you are running an extra load from the engine > - it *must* use some fuel to do it! Howard, remember when Jeremy Clarkson drove a diesel Audi A8 (a V8 luxury sedan) from London to Edinburgh and back on one tank ? The only thing he dared use was the radio. No AC, no window open, no wipers, no lead foot, no stamping on the brakes. And he made it, getting more than 40mpg. Leading to such fuel- and weight-saving tips as not having a moustache !! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist