Due to convergence issues leading to inaccurate sensitivity results, each Cantera simulation was repeated with relative error tolerances, rtol = 10 -10 , 10 -11 , and 10 -12 , and absolute error tolerances, atol = 10 -16 . . . 10 -24 , for a total of 27 simulations. Simulations which failed, or which gave sensitivity values that were outliers (more than two times the interquartile range from the quartiles) were excluded, and the remaining values were averaged.