[chuckdw]

I have an 03 Echo/Toyota. started using a Ultragauge. I noticed the EZ-est way to increase my mpg's was to follow an 18 wheeler @ 2 seconds distance. I have noticed 20-40% increase in MPG's on the hiway. A scangauge will work just as well. Check the instantaneous MPG behind an 18 wheeler for a few miles on level hiway, then pull out for a few miles you will see an amazing difference. And its free. Let a big truck or bus break the wind for you. Even an SUV will help. If you do the hiway, you don't even have to go slow on long trips, get 2 sec or less , (2 sec is legal) behind a fast one and you will notice a great increase in efficiency. I went from about 37 up to around 45-55.