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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.

View Poll Results: Whats your MPG?
10-11 0 0%
12-13 2 5.88%
14-15 2 5.88%
16-17 4 11.76%
18-19 6 17.65%
20-21 3 8.82%
22-23 3 8.82%
24-25 2 5.88%
26 and above 12 35.29%
Voters: 34. You may not vote on this poll

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Old 07-22-2003, 06:24 PM   #21
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32Mpg - Ain't it great !!
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Old 07-22-2003, 06:55 PM   #22
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You are right on there. I love my Bonnies, even with their niggly little problems they are still awesome.

Luxury with Attitude and still getting 32Mpg. I really cant think of any others that can do that

(on a off topic but related note, maybe its a GM thing but my 5.7 Litre Z28 Camero gets 26Mpg on the highway - so I am a happy camper all round )
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Old 07-22-2003, 07:46 PM   #23
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I usually average around 18 in the city with my 95.
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Old 07-22-2003, 07:55 PM   #24
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yeah, its the 275Hp model from 1995. It rocks and really turns heads as its got that Mystic Teal paint that changes from green to blue to purple in the sun. I will never sell that car

But as awesome as it is, its not much faster than my SSEi. I was surprised at how quick the SSEi Bonne'* are.
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Old 07-22-2003, 08:34 PM   #25
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yes, you are right there. A rolling start with the Bonnie is not as good. But I am most impressed with my SSEi with 2nd gear acceleration. Doing about 40Mph and dropping the hammer in 2nd amazes me every time.

Anyway, i guess thats getting off topic huh.
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Old 07-22-2003, 08:39 PM   #26
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Yep
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Old 07-22-2003, 08:43 PM   #27
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My '96 Olds LS gets just over 30 mpg on the highway at 80, and that'* at altitudes of 4000-7000ft. In mixed driving it gets 25-26. Amazing. 134,000 miles, no oil usage.
I don't know why some of these H bodies only get 24 or less.
I knew a guy who bought a used Park Avenue because everyone he talked to was getting 30 or more on the highway. He got 24 and was so mad he sold the car.

The best I've heard on these cars is an old farmer I knew who had the first generation of these cars, like a '86 LeSabre. He claims he consistently got 35 mpg on hiway trips.
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Old 07-22-2003, 08:45 PM   #28
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Yeah, I should have mentioned that I had a 1985 Pontiac 6000LE, I guess thats a cousin of the Bonneville right ? Anyway, that always got about 30Mpg on the highway too.
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Old 07-22-2003, 11:16 PM   #29
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the biggest influence on your gas mileage is the way you drive.
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Old 07-22-2003, 11:35 PM   #30
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Quote:
But I am most impressed with my SSEi with 2nd gear acceleration. Doing about 40Mph and dropping the hammer in 2nd amazes me every time.
If you nail the gas at 40mph, you will be at the very bottom of 2nd, whereas if you nail the gas at 35mph, you will be at the top of 1st and the car will pull MUCH harder. Nailing the gas at 40mph doesn't amaze me...the car is super slow from 40, thats about the worst speed you can nail the gas. Thats why everyone says L67'* have a 40mph lag. But if you get a reprogrammed computer your 1st gear downshift will come at 40mph or sometimes even up to 45mph. Then the car pulls like mad. Anyways.

Quote:
The best I've heard on these cars is an old farmer I knew who had the first generation of these cars, like a '86 LeSabre. He claims he consistently got 35 mpg on hiway trips.
I can completely understand the 35mpg. Our GTP gets over 35mpg on the highway, and its not like it doesn't have power.
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