Check out my topic on a polycarbonate grille block for the upper grille. It's still working just fine.
Did you tape off the lower or upper grille? I'm curious because I think taping off the drivers side lower grille would be great in the winter for increased air temps, and faster warmup. The radiator outlet is in the lower left, so it would still be plenty cool with 3/4 of the grille blocked off when the temperatures are below 50*F.
The GM dash gauges are trash. The two my car has lie like criminals. My ScanGauge is much more accurate, especially for fuel economy.
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2012 Chevrolet Cruze Eco 6MT
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