Yes, I am relying on the on-board fuel consumption computer. and like Redline said: no matter how I drive, I still get the same. About the A/C I thought it had huge difference in MPG. I'll try spark plugs, I think I am due on that.
Thanks.

Also nothing has to do with this, but I found unplugged wire on the floor by the gas Pedal. It has a plastic Head. Sorry I am at work so I don't have any pics right now. Any Ideas on what it could be?