No change for my ECO MT.
I drove without my untouched shield in place for 4 days after my deer strike, and I'll agree, the front end felt like it was floating a bit more. That feeling went away after the shield was re-installed. Tires were at 44 PSI the whole time. I couldn't notice a MPG loss without the shield.I saw my MPG go up slightly since the recall was done, however at higher speeds the car feels looser and more wind blown. If one drives mostly highway at highspeeds I could easily see this cause a drop in MPG. Seen an article after the recall first came out that GM was going to run higher PSI in the 2013 tires to compensate for the MPG loss.