Update

Wow, it's been a while. The Geo is still my daily driver, had an issue with rust/corrosion in the fuel lines, made them impassable, took a while to figure that one out (thought it was the fuel pump). Ran some steel cable into the lines and cleaned them out good, no issues since then other than a leaky radiator hose. Got an alignment a while back, was hoping it was way off and I'd see improvements in FE, but it wasn't and I didn't. Wheel skirts have been off since the alignment. Driving only 6 miles each way to work was getting me tank averages in the 38 mpg range in winter and low 40s the rest of the year. Now I'm driving 22 miles each way in heavy to medium traffic and averaging low to mid 40s. Probably going to put a Subaru style roof scoop on soon so I can get the air to come into the front of the car better. Slow work takes time...