WOW!!!! I got 28.5 MPG - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-16-2008, 01:57 AM   #11
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hhahaa, wow. Thats...good. but you can probably do better..

I averaged 33.5 on a 400 mile trip WI-IN going about an avg highway speed of 75 and actually included getting stuck in traffic for 3 hours

On the way back..for 400 miles...I did about 30 spurts of 75-100 on I-65 for the 100 miles between Lafayette and I-80, then got stuck in rush hour traffic in downtown chicago on I-290 for about 2 hours, then drove around the north chicago suburbs in heavy traffic, AND being lead footed...for about 30 miles. I averaged 28.5 mpg for that 400 miles.

Me thinks something is holding you back, because my mileage is an L27 with 3.06 gears...
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Old 02-16-2008, 11:49 AM   #12
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We all should see MPG improve in the north after Feb. 15th. thats when the gas formula is changed.
I too look forward to 29 - 31 Highway miles in the summer.
Winter around town 15 - 17 tops.
Can't wait for summer.....
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Old 02-16-2008, 01:11 PM   #13
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Quote:
Originally Posted by smellbird
If you would have kept your speed down between 65-70 you probably would have got 30 or a little more MPG.
Impossible...

Right now, I'm finding 15mpg average in the GTP, 17 in the Aurora...go figure (all city #*)
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Old 02-16-2008, 03:11 PM   #14
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My cold weather here is not bad... But I have used some Ethanol blended fuel here and on that fuel my mileage has dropped a little... I started going to another station that doesn't have the Blended Fuel...

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Old 02-16-2008, 05:10 PM   #15
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I recently got 27MPG on a 330mi trip to and from Columbus averaging ~75mph. With lack of a good tune and with my car loaded to the max.

Ed
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Old 02-17-2008, 01:01 AM   #16
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Quote:
Originally Posted by Hans
30/31 is normal on a perfectly tuned up car

sorry to threadjack but im only getting about 16 city and 20-22 highway om my 95 se.
just gave it a tune up and a new catco,, is this bad.?
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Old 02-17-2008, 02:53 AM   #17
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Quote:
Originally Posted by 88bonnsse
Quote:
Originally Posted by Hans
30/31 is normal on a perfectly tuned up car

sorry to threadjack but im only getting about 16 city and 20-22 highway om my 95 se.
just gave it a tune up and a new catco,, is this bad.?
Yes. I got 37 last time I checked. I had a bad vacuum leak and I got numbers like yours.
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Old 02-17-2008, 03:28 AM   #18
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Quote:
Originally Posted by 88bonnsse
Quote:
Originally Posted by Hans
30/31 is normal on a perfectly tuned up car

sorry to threadjack but im only getting about 16 city and 20-22 highway om my 95 se.
just gave it a tune up and a new catco,, is this bad.?
yes, something is seriously wrong. unless you LIKE driving a truck
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Old 02-17-2008, 11:56 AM   #19
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200 Mile trip from Rockford MI to Kalamazoo MI. 35 MPG, through a construction zone
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Old 02-18-2008, 07:22 AM   #20
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Four times a year I make a 1,500 mile round trip to Dallas. While I'm there, I do about 100 miles of city driving before getting back on the highway. I average between 34-36 mpg. I do the exact speed limit of 70 mph in TX, 65 in OK or NM, and 75 in CO. 49,000+ miles total, just change the oil every 3,000 and keep her clean

EDIT: Been tracking city mileage too. After zeroing out the computer at New Year'*, I'm averaging 23.1 around town.
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