What's your gas mileage? - Page 3 - 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 09-25-2005, 02:50 PM   #21
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Quote:
Originally Posted by optmusprimer
no lie i filled up two days ago and only needed 2 gallons, and the trip odometer only said 101mi. thats 50.5 MPG!!!1

lowest ive seen is 17 or so, regular highest is 21.
Too small of a sample. You can't accurately calculate on 2 gallons, as your tank will hold different amounts at full depending on the fill.
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Old 09-25-2005, 02:54 PM   #22
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Originally Posted by duffer26
well i have seen 13 mpg for the last 2 tanks but that was running mid grade and that is only 87 here in colorado bumped up to perumiuem this tank to see what i get new delco o2 and plugs 180 t stat aswell as a new pcv and all my driving has ben in town 10 miles 1 way to work and some fun runs mixed in i think i need to pop the T.B. off and do a good clean on it
on a side note dose the milage still count up when the dash goes out like i shut off the ignition ? might count for some lost milage
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Old 09-25-2005, 03:05 PM   #23
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If the cluster loses the main unswitched feed (due to battery disconnect or corrosion on the connectors), the trip meter resets, but not the Odometer.
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Old 09-25-2005, 03:07 PM   #24
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i think he is referring to shutting off the engine, and coasting, if the odometer still counts that. i know it does if its mechanical, but does it if its an electronic?
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Old 09-25-2005, 03:09 PM   #25
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If it'* electronic, it wouldn't reset, but I don't know about still counting. The electronic SSE/SSEi cluster uses the VSS sensor to count up on the ODO. Someone would have to test this (I might be able to later today), but it would have such a minimal effect on fuel mileage that it wouldn't matter, since you're not burning fuel to coast anyway, and the distance you would coast would be minimal, then you have to burn more fuel to get back up to speed.
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Old 09-25-2005, 03:10 PM   #26
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i was just wondering if it still counted if it went dead wilre going down the road and no coroshion just need to break out the sodering iron and fix a cold solder joint it only blinks out if it gets warmed up if it is cold out and i run with the window down and no heat it will never blink out but if it is hot out it wil blink out pretty fast and allso if the lights are on it will go out quickly as well
and no i dont coast that is dangerous around here
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Old 09-25-2005, 03:14 PM   #27
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just wondering like i went 150 miles yesterday with out the dash powerd so i was just trying to figur out if the miles still rack up in the brain wile the rest of the dash has no power
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Old 09-25-2005, 03:17 PM   #28
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Did you write your starting ODO down? If so, you'll know the answer when you power it back up.
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Old 09-25-2005, 03:23 PM   #29
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yes and no lol got the milage when i filled up and then when when i filled agin but some of that time the dash was dead so i was just looking at that as a posabul reason
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Old 09-25-2005, 05:16 PM   #30
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i can pull 35 hwy at 65
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