Patent ID: 8663344

Claim:
A composition derived from at least one biodiesel and, i) at least one hindered phenolic compound; ii) at least one N,N′-di-substituted para-phenylene diamine; and iii) at least one metal chelator, wherein the combined amount of i)-iii) is in the range of from about 50 ppm to about 5000 ppm based on the biodiesel; wherein i) is present in an amount in the range of from about 10 to about 90 wt. %, based on the total weight of i)-iii); ii) is present in an amount in the range of from about 10 to about 90 wt. %, based on the total weight of i)-iii); and iii) is present in an amount in the range of from about 0.01 to about 10 wt. %, based on the total weight of i)-iii).