Here's an old drag-racing trick that'll help with power, thus economy: If you really want to keep the alternator where it belongs on your engine (or if like me you do a lot of night driving), you can either put a larger pulley on your alternator (don't get carried away - it still has to make enough juice to keep your battery charged) or (sometimes) put a smaller pulley on your crankshaft (don't get carried...oh, yeah, I already said that...).
...or was that already up there in the engine area, and I missed it?
