You guys think that they will do anything different to the engine tuning and programming to make a minor improvement in gas mileage?
I know, I know, you can't do much to improve when the H2 weighs as much as a house and is shaped like a brick, but given this was one of the owners' major complaints, you'd think GM would make at least a feable attempt to squeeze out another 1-2 MPG (I know - no small feat, but can be done in the aftermarket...)
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