805eclipse
15+ Year Contributor
- 159
- 0
- Jul 16, 2003
-
Newbury Park,
California
Im getting about 230 miles to the tank in a 91 eclipse gst. i have no idea what is good or bad so let me know.
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Stephen 
So to say, I get 300 miles to a tank, assuming I mean a empty-filled-to-full tank on a standard 1G gas tank, does give us an accurate measurement, yes?
Originally posted by 97GS-TnVegas
I just had my low fuel light come on, so I filled up.....13.2 gallons...and I went 361.2 miles on itWhen I go boosting like a maniac though, it drops to about 320.....thats on 91 octane chevron gas

Originally posted by entropy138
No its not accurate. As we all know the stock fuel tank gauge isn't horribly accurate and sometimes, depending on temperature, pressure, angle of incline, and other conditions it reads differently. Some of us could have a dented tank, a bunch of crap in there (who knows how much sediment is pumped into your tank...) ect. ect.
A tankful for one person could be two gallons different than a tankful for another person. And that is a huge difference when figuring MPG. Besides there are not any numbers on your gas gauge to judge that you are filling it up at the same point evertime. Hell I've filled up several different times when the gauge is EXACTLY covering the 1/4 tank mark and I NEVER put in the same amount of gasoline. Sometimes it differs by up to 2 gallons.
Nobody should EVER be able to forget how to figure MPG either... If you can say it you can figure it out.
Miles per gallon = XXX amount of miles driven /(per) gallons consumed.
or gallons required to fill your tank back to full.
If you want an accurate way to look at it - look at it like this -
'on a tankful of approx 13.5 gallons I get 300 miles'
Anything short of saying how much fuel you used is too vague though. Tankful is just too arbitrary.
Especially if we have different sized tanks between 1g's and 2g's, GVR4's, Evo's, and any other car that uses the 2.0L 4g63 that is on this board trying to figure out how their car compares. Granted diff gearing of these 'other' cars has an important effect, but never the less they may want to get a rough comparison of how their engine is performing also.
Originally posted by Honda4Lunch
Yep...just did a cross-country trip and I was getting 27.5-28 mpg. I was using 93 and twice Sunoco Ultra 94(I love that stuff). I was getting 352-373 on a tank which I would fill to almost 14 gallons(13.975). My fuel light works and comes on as advertised at approx 2 gallons left which wouldn't be til 350 miles. This was all highway but with tolls and a 30 min traffic jam...I was extremely happy.
BTW, the car is mostly stock except for the filter, and 3" downpipe, 3" highflow cat, and 3" custom catback to a Magnaflow.
Originally posted by born4music04
One time I got 423 miles on 10 gallons. Of course I was driving like a grandma and that is NOT how I usually drive.![]()
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Originally posted by born4music04
One time I got 423 miles on 10 gallons. Of course I was driving like a grandma and that is NOT how I usually drive.![]()
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Originally posted by 98blackspyder
What? I have a 98 gst and I only get about 140-180 miles per tank. My car is basically stock except for a k & n fipk. On my 97 rs I used to get about 230 miles per tank. Any ideas what can be causing the low gas milage???
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