gas mileage - 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 06-26-2007, 10:04 PM   #1
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My 94 sse seems to be getting poor gas mileage. Should i use drive or overdrive. Is there anything to increase gas mileage?
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Old 06-26-2007, 10:30 PM   #2
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What'* 'poor' and what type of driving do you do?

When was your last full tuneup?

Freeway? Use OD. City? Leave it in OD. The PCM and trans are usually smarter than us. They know what to do.
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Old 06-26-2007, 11:02 PM   #3
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there'* a whole bunch of different things/ combination of things that could cause bad gas mileage... what i do is i click the search button at the top right, just search for "gas mileage" or "bad gas mileage." there'* SO much information from other people with the same problem (like me)
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Old 06-26-2007, 11:33 PM   #4
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Right!

mpg is another good search phrase.
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