JetSurF2.0 consists of 348 species and 2163 reactions. The development effort centers on n-dodecane and n-butyl-cyclohexane, but the model includes also the high-temperature chemistry of all n-alkanes up to n-dodecane, and mono-alkylated cyclohexanes, including n-propylcyclohexane, ethylcyclohexane, methylcyclohexane and cyclohexane. The model is “un-tuned” and work-in-progress. The development effort centers on achieving consistent kinetic parameter assignment and predictions for a wide range of hydrocarbon compounds. This effort is reflected in the validation tests documented in the Performance that we know page.