Quote:
Originally Posted by liquidzorch
El
Ok. O2 sensor has been replaced in last year. Tires are at 32psi. Which is factory spec. No extra stuff. Aluminum rims 13 inch. Tune up done with cap rotor and all filters. The low compression is because i only honed the cylinders since they were still in spec. Oil is 10w30 in both engine and tranny. Fuel consumption has been the same for over a year. With 17 liters of fuel i get 120-140 miles. Depends on how much highway. And not to he rude but i am not going to turn off the car at every traffic light. I shouldnt have to to get the same results of people who dont turn it off. If you think it is due to compressiob is there a way i could verify before rebuilding with overbore?
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If the wear in the cylinder walls was not enough to warrant a bore, the hone should have sealed the cylinder up like new, assuming the rings are new and that the headgasket + valves are sealing properly. So you could have valve issues, causing lower compression. You could verify that with a leakdown test if you really wanted to.
You said you get 30 MPG, which is actually normal for this car. 29 combined is what the EPA estimates.
Fuel Economy of the 1993 Honda Civic
So everything appears to be normal if the car is stock and you drive it like a normal person. The only way to push it beyond EPA ratings is to follow the techniques that are on this site, and you already stated you are not open to one of the easiest and most common.