gas milage - 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 11-02-2005, 01:26 AM   #21
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The best my car has done is about 32 mpg going doen layfette,ind drove about 75-55 most of the way. My car is usually around 28-29 per tank. Yes most of the miles are highway on my car. On the way back I got about 25-26 80% of the trip was over 90mph. That highest was 95. My car didn't see to have much problem seem that it could do much much faster
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