| abstract |
A non-aqueous lubricating composition containing a major amount of an oil of lubricating viscosity and a minor amount, in the range of 0.02% to 5% by weight, of at least one compound represented by the structural formula (I): n nwhereinn R 4 represents H or a C 1 to C 9 hydrocarbyl group or nn n n n n n n n n n n n x, y and z are independently integers in the range 1 to 6; and R 1 , R 2 and R 3 each independently represent a C 1 to C 10 hydrocarbyl or substituted hydrocarbyl group. |