OK, I think I can officially call it a success story, now - a 60.9 mpg fill-up in a 1999 four cylinder Suzuki Swift, who's EPA combined estimate is 35 mpg.
It is also the first time since I've owned it that it went 400 miles between fill-ups. Not because it couldn't, but because the fuel gauge is weird and I was always uncertain. But now, the fuel gauge simply doesn't work anymore, so I go by miles. And knowing very close to how I'm doing, since I track it so closely now, I know I have plenty more range left.
This also moved me up to 19th place in "top mpg - gasoline cars" - the highest it's ever been. So I'm pretty happy!
