zenon8890

my car does a 180miles per full tank, i've changed everything u should think of to make it better, nothing worked, how do i know that my o2 sensors are fully functional?! i dont have any CEL

Pothole987

How about your thermostat? The temperature at which your car is running ( like too cold) will DECREASE your mileage.
BTW if there are no CELS then usually the o2 is good.

zenon8890

its always average, but my car drinks my radiator fluid weekly a little, i dont see any leaks and i've changed my thermostat switch twice cuz it stopped working suddnly

thumper64

A lazy O2 won't throw a code. It's only when they get really bad that they will throw one. I say find one, switch it out and either it will work or you got one for when you do need it.

silver-ek4

if its drinkin radiator fluid but u dont see any leaks u may have a blown head gasket

zenon8890

but my car doesnt overheat

zenon8890

and it doesnt have to do anything with my problem

sde780

Don't buy a cheap one, it's best to go OEM. I bought a Bosch O2 sensor and half a year later it's failing on me.

Check your tires, brakes for dragging, tune-up stuff?

zenon8890

i have oem o2 sensor, i have new brake pads and rotors too

zenon8890

so whats the problem?! i used a scanner for my car to check if my car is like factory civics, everything looks fine. i drive like a granny and i use 90 octane unleaded fuel. my auto tranny seems to slip on 2nd but it doesnt make that such thing

zenon8890

how do i know if my injectors are not just pouring fuel into the engine? i dont have smoke at all, its like my engine blows air from the exhaust, no colors or smoke at all