Novel mixtures of sugar amides or sugar amines are disclosed that have improved thermal properties over the individual components. New feedstocks based on both the surfactant tail as well as the sugar head group allow for improved physical properties of sugar amide surfactant mixtures and thus improved formulatability. Furthermore, new sources of unique methyl esters from both bioengineering and or co-metathesis of fats and oils provide novel and improved sugar amide surfactant mixtures.