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GM 3.6 Gas Mileage
Anyone have the new 3.6 304hp V6 motor having mileage problems.
My CTS Coupe is only getting around 13mpg. Sticker says 18 local, 28 hiway. Took it back to the dealer and they say after 3-4 thousand miles it should be better. Would be ok with 15-16 but 13 sucks. Car has 1500 miles on it. |
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