I filled my 89 integra the other day and notice it is only getting about 18-20mpg city/highway combined. Is there something im missing , i thought this would get 30mpg easily, runs fine, changed plugs and air filter. I run 87 octane does that matter? idles smooth and runs good. the temp gauge usually heats up if im sitting but while driving it barely reaches the 1/4 up area. Would the cool temp have that much affect on mpg, it the thermostat hard to replace if thats the problem or do most of your cars run real cool in the winter.

Thanks

 

ok i think you just need to pull the gas pedal back a little and not get on it all the time that eats your gas up really quick. no your temp wont effect that and no its not hard to replace a thermostat. you could have a bad fuel filter, o2 sensor, injectors etc.... my 90 integra runs hot when its just sitting there also havent really looked into it that much cause it only does it if its sitting there running for like 30 minutes. my first guess is there is water bubbles in your radiator or you thermostat is bad. but it could also be a leak some where do you have to fill your radiator up

 

ok i think you just need to pull the gas pedal back a little and not get on it all the time that eats your gas up really quick. no your temp wont effect that and no its not hard to replace a thermostat. you could have a bad fuel filter, o2 sensor, injectors etc.... my 90 integra runs hot when its just sitting there also havent really looked into it that much cause it only does it if its sitting there running for like 30 minutes. my first guess is there is water bubbles in your radiator or you thermostat is bad. but it could also be a leak some where do you have to fill your radiator up alot?

 

im generally nice to the car, never really over 3k rpms except on the highway.
Come to think of it, it kindof bucks a little when accelerating, and sometimes there is a kindof dead spot right around 2k rpms when accelarting and then once it starts to go past 2500rpms there is almost a feeling of turbo boost and it runs smooth and powerful.
Ill check into the fuel filter though

 

ya thats is the good ol hondap ower ban you are feeling there. get a fuel pressure gauge you can usually rent one from any major auto parts store and welcome to HAN!

 

MR crx, my quick .02... your car DOES burn more gas if its not heating up to normal operating tempeture The car stays in a "warm up mode" which consumes more gas.

 

hmm i have never heard that before guess you learn something new everyday

 

www.fueleconomy.gov