High Octane Lubricants for Knock Mitigation in Flame Propagation Engines: 7,262,155

This invention includes a lubricant composition comprising a base oil and one or more additives, wherein the composition has an elevated pressure auto ignition temperature of at least about 500 K. This invention also includes a lubricant composition comprising a base oil and one or more additives, wherein the composition has an octane number ((R+M)/2) of at least about 80. This invention also includes a lubricant composition for reducing the propensity of end gas knock in a flame propagation engine, comprising: a base oil and one or more additives, wherein the composition has an average boiling point in excess of 200.degree. C.