| abstract |
A lubricant composition, method for reducing a boundary friction coefficient of a lubricant composition, and method for improving fuel economy. The lubricant composition includes a base oil, a metal-containing phosphorus antiwear compound in an amount sufficient to provide from about 100 to about 1000 ppm by weight phosphorus based on a total weight of the lubricant composition, and a blown vegetable oil, different from the base oil. The base oil is present in the lubricant composition in an amount from about 50 wt.% to about 92 wt.% based on the total weight of the lubricant composition. |