Oh BTW if you ever want to determine how much oxygen is in your gasoline its pretty easy:
The weight percent oxygen in commercial gasoline samples is determined byusing partial least-squares (PLS) regression analysis combined with either FT-Raman, FT-IR, or dispersive near-IR spectroscopy. Calibration models wereconstructed with the use of 33 MTBE oxygenated commercial gasolines. Theminimum standard errors of validation with the use of leave-one-out validationare 0.156, 0.188, and 0.119 wt % oxygen for FT- Raman, FT-IR, and near-IR,respectively. An independent test set of 36 MTBE oxygenated commercialgasolines was used to further validate the PLS models. The minimum standarderrors of prediction for the test set are 0.155, 0.143, and 0.131 wt % oxygenfor FT-Raman, FT-IR, and near- IR, respectively. The wt % oxygen in allsamples ranges from 0.2 to 3.262%.
My head hurts