they really vary on these cars... you dont have as much as you would think... its almost better to track your fuel off the trip meter...

the fuller side of your tank will always move slower than the empty side.. just the way these tanks are...

if you have a 100% full tank, you should be able to drive 100 miles before it gets to the "F", and then probably get to 250 miles with it straight up and down... and than maybe 100 miles until you are emply...

*rough guess*

Actually..that'* darn near perfectly accurate.

Our gauges are merely reference in most cases.

Yes, those were good approximations, Andrew. Depending on the kind of driving you're doing, a safe estimate would be 19-21mpg in the city and 27-29mpg on the highway (depending on how aggressive you are). If your engine is running properly you should be able to go 300 to 350 miles on a tank in the city, and 450+ miles if you're completely on the highway. Even if you figure on the low end of each mileage range and give yourself a one gallon buffer, 19mpg will give you 323 miles in the city and 27mpg will give you 459 miles on the highway.

I go completely by mileages now because my gauge is 100% inaccurate. I'm just holding out to replace the fuel sender until I need a new pump as well.

Wow .... I'm glad to read this post. My '94 SSE does this exact thing.... drove from KC to Minneapollis when I first got the car, left KC with a full tank, and hadn't even crossed the 1/2 tank mark at the Iowa/Minn border. 40 miles later I was at 1/4 tank.

I go almost exclusively by the trip meter now, and never let the gauge get into the hatch marks above 'E'.

I was kicking myself for not haviing the sending unit replaced when the fuel pump went out, but now that I've seen this post, along with the costs for a new sending unit...... well the trip meter is definitely my best friend.

We have 3 different models, 3 different years, 2 different gauges, 2 L36s and an L67. Every one of them behaves exactly as harofreak00 described. From a full tank... when the gauge hits half and you look at your mileage, you think you're going to get 40 mpg. From there it goes fast.

FWIW, I have never run out of gas assuming I have 20-25 miles left when the fuel light goes on. i am probably overcautios, but i have no urge to find out what is at the bottom of my gas tank.

Man i get like 230 miles per tank if I am lucky, I do like to race around a bit but I get on the average 15-16mpg city in my 95.