I had enough and took action. My investment gassaver. My 1996 Geo Metro 5 speed 4 door sedan. It needed a new motor along with a radical tune-up.
It's looking like I'll average 40mpg in the city which is where I do 95% of my driving. I'm trying to burn a few tanks of premium through it along with some Techron fuel concentrate to clean things up a bit, then I'll change the fuel filter and see if regular unleaded will not cause the detonation I was experiencing.
It drives wonderful. No a/c or p/s, but what the heck.
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