gas milage - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-26-2005, 09:27 PM   #11
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Quote:
Originally Posted by markwb
My mpg'* drop a little when I'm pushing deer off the road.
It'* the moose that slow me down
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Old 10-26-2005, 10:40 PM   #12
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don't take it the wrong way. My reply was meant to direct you to some of the other threads so you can gain insight.
in summer I generally get 18-20 around town and 27-30 highway.
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Old 10-29-2005, 11:13 AM   #13
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If you want to get a more accurate mpg, fill you tank up and drive your car for a couple of tanks of gas. As you do this, keep track of the total gallons of gas you put into it (exluding the first fill up) and the total miles driven. Simply stated, your starting point for this exercise is a full tank of gas and zero miles on your trip odometer. You don't have to fill the tank each time if you don't want to, only the last time you put gas into the tank before you do the final calculation. Then just do the math.

Total miles driven divided by gallons of gas placed into the tank = mpg

I will do this on a very long trip, to and from my destination, to calculate my highway mileage.

I get around 24 around town and 32-33 hwy.
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Old 10-29-2005, 10:11 PM   #14
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Quote:
Originally Posted by malatu
Total miles driven divided by gallons of gas placed into the tank = mpg
I get around 24 around town and 32-33 hwy.
malatu, are you sure about that 32-33 mpg figure. It just seems a little too high for mpg'*. I think these Bonnes were rated for like 28-29 mpg hywy IIRC.
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Old 10-29-2005, 10:20 PM   #15
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Quote:
Originally Posted by markwb
Quote:
Originally Posted by malatu
Total miles driven divided by gallons of gas placed into the tank = mpg
I get around 24 around town and 32-33 hwy.
malatu, are you sure about that 32-33 mpg figure. It just seems a little too high for mpg'*. I think these Bonnes were rated for like 28-29 mpg hywy IIRC.
my car has seen 30'* on the highway. Just never while I've been driving it

I normally get 17-18 city and 25-27 highway
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Old 10-30-2005, 05:01 AM   #16
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Quote:
Originally Posted by SSEBONNE4EVA
don't take it the wrong way. My reply was meant to direct you to some of the other threads so you can gain insight.
in summer I generally get 18-20 around town and 27-30 highway.
Hey, it'* all good bud! i guess i was in a grumpy mood when i replied. anyways, thnx for all the replies. i think i'm going to go back to '' ac delco '' o2 sensor. i currently have a bosch one installed. and maybe a tune up wont hurt. last time i had it was 2 years ago!!

thnx all!

Al.
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Old 11-01-2005, 09:10 PM   #17
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I have not calculated it in a while, but if it ain't 32-33 it'* 31-32! I've calculated it numerous times on long trips (400+ miles).
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Old 11-01-2005, 09:20 PM   #18
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Just so you don't think I'm nuts, here is a gas mileage thread. It supports 30- 33 mpg.



http://www.bonnevilleclub.com/forum/...mp;highlight=A
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Old 11-01-2005, 09:26 PM   #19
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Quote:
Originally Posted by malatu
Just so you don't think I'm nuts, here is a gas mileage thread. It supports 30- 33 mpg.



http://www.bonnevilleclub.com/forum/...mp;highlight=A
I don't think you're nuts, I've pulled close to 35 mpg with straight highway on a trip back from North Carolina about 3 years ago.
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Old 11-01-2005, 09:45 PM   #20
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Under ideal conditions....my Bonnie pulled a little over 34 mpg....on a long trip to New Mexico...driving through the flatlands of Iowa....with a little wind at our backs.....a fresh tune up and mobil 1 in the crankcase ....I cant say what I got on the way back though....I pushed the old girl a bit....we made 1,100 miles in a straight drive back.from 9:00 am to 3:00 the next day....what does that calculate out to...average speed? I know she cruises sweet at 90....LOL.....
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