Compositions and methods for lubricating engine components

A lubricant oil composition, comprising:

• a first volume of a base oil;
• and
• a second volume of an additive, the second volume comprising:
• a first component comprising carbon molecules having a first molecular weight between C20 and C42;
• a second component comprising carbon molecules having a second molecular weight between C20 and C42, wherein the first molecular weight and the second molecular weight are different, and wherein the first molecular weight and the second molecular weight are within a molecular weight distribution band of ten or less carbon numbers;
• wherein the first component and the second component exhibit an evaporation rate deviation of approximately ten percent (10%) to maintain a first concentration of an evaporated portion of the first component greater than a first upper flammability limit of the first component subjected to conditions within a combustion cylinder of an engine and a second concentration of a second evaporated portion of the second component greater than a second upper flammability limit of the second component subjected to the conditions within the combustion cylinder of the engine;
• and
• wherein the conditions within the combustion cylinder are characterized by:
• a temperature between approximately 700K and 1300K;
• and
• a pressure between approximately 30 bar and 150 bar.

A method for lubricating moving parts in an engine, the method comprising:

• providing a lubricant oil comprising a first component and a second component, wherein:
• the first component comprises carbon molecules having a first molecular weight between C20 and C42;
• and
• the second component comprises carbon molecules having a second molecular weight between C20 and C42, wherein the first molecular weight and the second molecular weight are different, and wherein the first molecular weight and the second molecular weight are within a molecular weight distribution band of ten or less carbon numbers;
• and
• wherein the first component and the second component exhibit an evaporation rate deviation of approximately ten percent (10%) to maintain a first concentration of an evaporated portion of the first component greater than a first upper flammability limit of the first component subjected to conditions within a combustion cylinder and a second concentration of a second evaporated portion of the second component greater than a second upper flammability limit of the second component subjected to the conditions within the combustion cylinder;
• and
• lubricating a surface of the engine by adding the lubricant oil to the engine.