Thread: p71 Mpg - Crownvic.net

are u sure its not accurate because i did the same exact thing today and rode till my gas light came on and got 70miles this time

you can not get an accurate number unless you do it the way I posted...full tank, drive, fill her up, divide miles used by gallons needed to fill again!

yup. to reset your pcm yank your negative battery cable for a good 20 minutes and reconnect it.

Make sure you reset the PCM if you haven't already after cleaning your MAF.

that is not normal.. you have something wrong somewhere. try cleaning the MAF, check the O2's, check fuel filter, check plugs, do you have a heavy foot?

i average between 17-19mpgs on 90% highway travels. and since i know i have to make my gas last me as long as possible, i stay from getting into it as much as possible. Id check your o2 sensors like mentioned, tire pressure, weight, try taking everything not needed in the car out. im sure you get the idea.

I get 15-21 mpg just depending on how I drive.

i have the same situation but mine is p73. but o2s and plugs didnt checket yet.

it is going to depend on your driving. if the only driving you do is short trips in heavy traffic with lots of idling is going to be bad no matter what you drive.

So far I've gotten around 240 to a tank because I've had the car for 3 days, and I've been playing with it, and seeing what it's like before I start driving it seriously for mileage. I'm guessing I'll do half way decent though. I'm not complaining about the car either, because the daily driver before got 6-10.