Just wanted to check in first time. I have a 92 Civic VX which I bought new. Has 411K miles and still going strong between 40 and 45 mpg. Been te best car I've ever had. Soon I will be looking at doing some work on the car and am interested in the mpguino. Thanks for this great site.
UltraGuage is only for OBDII compliant vehicles as I believe is the ScanGuage. I think the MPGuino is your best bet. But I'm sure some of the Civic guys would be a better source of info. Check out the Wiki for the MPGuino at MPGuino - EcoModder when you get a chance.