Here are my fillups before and after the update and SCR Mixer recall. There is no statistically significant difference. Next step is to get the latest (October 2012) open recall  software update for the emissions and see if it improves. I was hoping someone else did it before me and could provide feedback. There's no going back if mpg heads the wrong way.
before after
22.22 21.96
21.28 23.70
25.76 25.31
25.41 23.86
23.35 25.95
23.17 25.01
25.34 23.23
23.54 25.15
24.70
Two Sample TTest and Confidence Interval
Two sample T for before vs after
N Mean StDev SE Mean
before 8 23.76 1.62 0.57
after 9 24.32 1.24 0.41
95% CI for mu before  mu after: ( 2.08, 0.96)
TTest mu before = mu after (vs not =): T = 0.79 P = 0.44 DF = 13
Last edited by sirbikes; 11122012 at 09:20 AM.
