Understanding of the octane response of gasoline/MTBE blends

•New RON and MON measurements of pure components and gasolines blended with MTBE.•The RON and MON of MTBE/gasoline blends are mostly non-linear.•Octane predictive models of MTBE blended with gasoline fuels were developed.•The models consist of linear and non-linear terms that depend on base fuel pro...

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