Generation III Internal Engine 1997-2006 LS1 | LS6

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Jan 15, 2013 | 12:22 PM

#1

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TECH Apprentice

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From: Springfield, IL

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gas mileage

obviously i didn't build the car because it is fuel efficient but im just wondering what other people are averaging. my car is listed in the signature and driver ONLY in town. obviously i drive spiritedly every now and then. at least once every drive i will get into it some.

i average ~10mpg on all city driving

what are you guys getting?

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Jan 15, 2013 | 12:34 PM

#2

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From: Howell & Fenton MI

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I average about 15 city

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Jan 15, 2013 | 09:30 PM

#3

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From: SoCal

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With a CTS-V stock LS6, I average 19 combined and 26-27 highway only.

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Jan 15, 2013 | 09:45 PM

#4

On The Tree

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From: Savannah GA

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I AVG 20 combined. Not sure of straight Highway, or straight city. My commute is half and half. When I had the 3.73's in there I got about 12-14. Just took them out recently, went back to stockers. When I had my TR 224 cam, with the 3.73's, I got obout 8-9.

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