I've recently become a mpg enthusiast. I have a 2000 Saturn SL1, which was getting about 22 mpg up until a few weeks ago. I went and replaced a slew of sensors, upgraded to synthetic oil, and upgraded to a K&N air filter. That done, I was seeing roughly 40-45 mpg on the highway. From there I made an oil catch can and rigged up a fuel heating device using the return coolant line running down most of the fuel line and back (the space around the fuel filter was just too small to try to wrap anything around). I have a goal of 50 mpg on the highway, and I would like to see 40+ in the city when using some hypermiling techniques. If there's any other Saturn fans out there, I'm open to trying most anything that won't break my car.