Just thought I'd post the results. First sample was the M1 0w20 AFE, the second sample was the M1 0w40 and the third was M1 0w30 AFE. I did notice about a 1mpg drop going from the 0w20 to the 0w40, but the reduced wear was worth it to me. I tried the 0w30 for curiosity to see how the fuel economy changed compared to wear products. Not sure 1 oil change per oil weight was enough to really see how each oil weight did, but oh well.
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