AZ-S2000

Picked up the car today. After its been sitting for a month, put fresh gas. Drove about 35miles and noticed 3 bars went down, this was highway driving. Than in the city it dropped another two lines, not even another 20miles so total 50miles on almost 4 or 5 lines. Highway I got to 6500rpm but otherwise its been nice cruising. I am at 99,600 miles and needs spark plugs and possibly valve-adjustment, would those two have that much of an impact. I am also thinking of replacing the Pre-Cat O2 Sensors which definitely influence fuel economy.

SLracer

Those lines aren't very accurate at all, its impossible to tell if anything is wrong unless you give us a mpg or full tank to empty tank number.

AZ-S2000

Alright, I'll have to calculate it up. Just sucks seeing it going down so fast, faster than usual. Than again if it isn't accurate which I agree 100%, than it could just be me. I mean I parked the car, passenger side on a sidewalk, get back in a few minutes later and the fuel went up a few lines. Weird weird

S2KIrishman

yea, its very common for my fuel gauge to move 3 even 4 bars within a matter of minutes...ill park and it will go back to where it was...the fuel gauge is definantly not accurate on this car

Coondawg_07

Haha. Not very accurate at all. I fill all my vehicles all the way up anyways. I get 280-300 miles per tank. Equals 25-27 mpg

takeshi

Not that weird, really. As stated above, calculate MPG based on a full tank and don't rely on the gauge.

Alexis915

Mine was doing the same I just changed the spark plugs and out was fine.