CEC76

I am getting considerably less milage out of each tank of gas lately. I am used to getting 27-29 miles/gallon and now I'm lucky if I get 23! I've already checked my tire pressure and air filter and both are fine. Does anybody have any other suggestions? How much will it cost? Thanks!!!! - CEC

GoLowDrew

spark plugs? Firing?

FifthGearOnline

yea i would say check all the ignition connections and timing......


this is my best gas milage 256 miles on 6.5 gallons of gas in my civic

CEC76

Thanks everyone! Does anyone know how to tell if your O2 sensor is good or bad?

TurboBumblBee

just answered this in another post but you will have a check engine light on if your o2 sensor is not working properly..

sshaikh01

i believe the fuel capacity of civic is 11 gallons. (EX)
how many miles do you guys get, during your regular driving wihout A/C..

ImportechPerformance

Did i miss something here or what?? Why dont you change your FUEL FILTER!

you2envious

If you have an automatic , change the automatic trans fluid , you suppose to do this every 15k . just an idea

deepnite

if the chech engine lite comes on..a sensor may be dead

hondafrk

my best milage in my dx hatch was 42mpg on the way from IN to WI even racing out of toll booths in chicago area with my car loaded with luggage. 429miles on 10.5gals of gas.
now im lucky if i get 30 with my mods and huge rims

BagelW

You guys are getting some really good gas mileage. I'm lucky to get over 300 mpg on a full tank. Does the B16 my 2000 Si has get that bad of mileage?

Lei Siew Long

i would suggest you change these things: fuel filter, cap, rotor, spark plugs, and spark plug wires. also, adjust your valve clearance (if it has been more than 15,000 miles on your car). this on top of what others suggested and add a bottle of fuel injector cleaner (either redline or VP racing fuels).