I've been avg about 20-22mpg last couple of months. Now I live on the eastcoast and lately its been cold as sheeiit around here.. probably around 20-40 degrees everyday. I heard cold weather hurts gas mileage a lot but I should be getting more like 26-28mpg according to what other peeps with b16As are telling me... I do mostly highway driving and I shift before 4k at all gears but I'll run it to 8k maybe once or twice per day.. I'm just trying to see if this is normal because of cold weather or maybe I should check somthing else?

 

Do you have a chipped p28? Those usually give bad mpg. Mine gets about the same miliage you're talking about (20-22mpg) with that setup.

 

During the winter months, gas stations use oxygenated fuel. This could be a cause to the bad gas mileage. Another thing is when you first start up the car, it goes into its high idle, another probable cause.

 

Never heard of that! I live in DC too. Do they do that here?

http://www.energy.ca.gov/gasoline/ty..._gasoline.html


[Modified by speedymon, 10:21 AM 2/1/2003]

 

i commute back and forth to school every day, and usually i get aroudn 35-37 mpg when its warmer out. Im in PA its been cold as **** lately and im barely over 30 mpg lately and i haven't changed my driving style at all. WINTER SUCKS

later

 

yea thats sunoco's "easy start" formula. they use oxygenated fuel in the winter

 

In MD they used to use oxygenated gas in the winter months, several years ago they switched to oxygenated year round

 

How can you tell if you're buying oxygenated or not? Does that stuff wear out your O2 sensor faster?

 

Does the O2 sensor affect gas mileage that much?

 

https://honda-tech.com/zerothread?id=397320