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Gas mileage time
Post your gas mileage city, highway, engine and transmission. I only say engine and trans because some people don't know the difference, I know it's a shame!
For those who don't know LS3=manual....L99=auto
LS3, best city 19, real average city 13.5, hwy 25-26, manual.
lifetime by onstar 16mpg after 19217 miles
half city half hwy
Last edited by CHMSC; 10-10-2012 at 04:31 PM.
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