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 04-12-2005, 11:49 AM   #21
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I'be gotten about 21 MPG from the day I rolled the car, and it now has 107K and I have yet to change the 02 sensor.

Am I just lucky, or what?
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Old 04-12-2005, 02:37 PM   #22
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Got ya beat 260K on the Trans Sport and the original 02. I still average about 22-25 MPG in the city and now that I got the rack replaced I'm getting the best MPG ever.
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Old 04-13-2005, 05:04 AM   #23
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I get about 18 city and have peaked at 32 hwy.
the wife gets 14 city, but then she goes the most indirect routes, hits every stop sign or light made.
96 Olds 98 Regency Elite

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Old 04-13-2005, 08:14 AM   #24
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I drive about 50/50 on my car right now mainly because it is now spring and mi has put all the road I drive under construction, My car gets about 24mpg when drive it to texas it got 26 mpg. Before I gave my car tune up(o2,spark plugs,fuel filter change) my car got 5 mpg 8 mpg. The O2 was the 1st I replaced a brought it up to 20 mpg and then did the other stuff a later and brought to what is today.
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