N-methyl-p-anisidine is a simple mixed ether that combines the ether and the aromatic amine functional groups, providing the multifunctional properties of the formula. Its use allows to improve the anti-knock, anti-oxidation, detergent and environmental properties of motor gasoline (according to the European emission standards), thereby increasing its functional quality. All properties of N-methyl-p-anisidine were confirmed by test results obtained by leading russian scientific-research centers.