This guy claims you can generally save around 6% of gas by not having your lights on. If true, I think using LED lights, and taking off the AC and/or alternator would really make a huge difference. I don't really see many ecomodders here reporting about this move so I'm curious what the thoughts are about this. Also, have people figured out the drag of having all your windows down vs. up? I don't have a scan-guage to do this and don't want to waste a tank trying.
Is the alternator always running and being a drain, or is it on an as needed basis?
Driving with your Headlights On
Also, better to use the windows down to cool off or a fan? Does the fan drain the FE or is it going anyway?