| abstract |
The present invention provides a corrosion inhibitor or an oxygen-containing fuel composition that protects a fuel distribution infrastructure of an oxygen-containing fuel and an internal combustion engine, and can act for a long time without fixing a valve or an injector in the engine. A gasoline blend stock comprising from about 1 to about 85 v / v% oxygenate or a mixture thereof and an amount of one or more corrosion inhibitors, wherein the amount is from about 1 ptb to about 50 ptb. An oxygenated gasoline composition wherein the one or more corrosion inhibitors have an acid / amine equivalent ratio of about 0.1 to about 3. The caustic is selected from the group consisting of at least one dimer acid, at least one trimer acid, and mixtures thereof; the dimer and trimer acid are obtained by dimerization or trimerization of unsaturated fatty acids, respectively. [Selection figure] None |