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Old 05-16-2008, 09:52 AM   #15
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We had a 1999 Buick Park Avenue and it would do 26 mpg everyday driving. On a trip to Florida it did 33 mpg and the whole trip to Orlando it did over 30 mpg. Plenty of room and plenty of power. I was at the dealer Wednesday and the best a full size Buick on the window sticker was 28 mpg. On the truck I now have it is about the same as the old one a 03 Duramax.

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Old 05-16-2008, 10:36 AM   #16
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I had a '94 Cadillac Fleetwood Brougham that I got 28 mpg going a lot faster than I want the State of Pennsylvania to know about. It got better mileage in or out of town than any "family" car I've owned since. So much for progress!

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Old 05-17-2008, 07:37 PM   #17
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Could be because those old cars used carburetors and not fuel injectors. Back in the 50's I read about this guy that had developed a carburetor that would get 80 MPG on an 8 cylinder engine. For some reason it never showed up on the market. I am sure the guy and his relatives are still enjoying the money the oil industry paid him for his invention.

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