[spacemanspif]

The single cam (your car) are great at getting 40 on a routine basis. Dual cams, like mine, are a little more thirsty. Even though they look good from the outside the front a rear subframe are prone to rust, as is the rear door sills. I pulled my trim piece off and found rust greater than the size of a dollar bill, might want to check yours. Plastic body panels are great but it gets cold up where you are and the plastic gets brittle, when they are impacted they crack and more likely, shatter.

Arcosine has a SC1 and gets 50mpg with his car. He's done a lot of aero and I think uses some EOC as well. Not sure if his boat tail is currently on or off...

Is yours a manual or auto trans?

saturnfans.com is a great source for keeping that heap running. First thing you should do is make sure the ECTS is the new design, brass, unit. It should be, as the plastic ones usually break around 150K miles. Just keep reading over there, whole bunch of info to be absorbed. DIYguy has a few threads on upping the eco by swapping sensors and fooling others. First investment should be a scangauge or ultragauge...I'm starting to become jealous of you OBD2 people lol.