gas milage - 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 10-14-2003, 10:44 PM   #1
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i just filled up me tank i get 17.3 miles to gallon in the city running refornulaed fuel sounds kinda low right what can i do 2 imporove?
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Old 10-14-2003, 11:14 PM   #2
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Originally Posted by joe
i just filled up me tank i get 17.3 miles to gallon in the city running refornulaed fuel sounds kinda low right what can i do 2 imporove?
put your MAF screen back in, when i had mine out i averaged mid to high 16'*, now that i put it back in, i noticed a good increase in top end power and i'm averaging low to mid 18'*
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Old 10-15-2003, 03:38 AM   #3
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And change your O2 sensor if it'* over 50-60k miles. With an AC Delco unit ONLY.
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Old 10-15-2003, 02:15 PM   #4
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will do thanks!
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