I'm Sneeke and I just bought my 1990 CRX dx a couple months ago. It has an auto trans but my first mpg run landed at 36.6mpgs (8 Gallons, 293 miles). Towards the bottom half of the gas tank I started enjoying the sound of the engine alittle too much, lost some mpgs there;
Although I'm happy with the results, after a few minor repairs on some more important parts, I'll be replacing my O2 sensor (looks original w/ 140k miles) and fuel filter. Let us see the mpgs rise!