wherein {HEAD ~ the mixture} of the first heavy oil fraction and the deasphalting residue comprises {TAIL ~ a dispersion} of deasphalting residue in the first heavy oil fraction wherein the size of the dispersed particles is from 1 micron to 500 microns, and wherein the composition has performance grade at low temperature of −10° C. or less and a performance grade at high temperature of at least 64° C 
wherein { HEAD ~ the mixture } of the first heavy oil fraction and the deasphalting residue comprises { TAIL ~ a dispersion } of deasphalting residue in the first heavy oil fraction wherein the size of the dispersed particles is from 1 micron to 500 microns , and wherein the composition has performance grade at low temperature of −10 ° C. or less and a performance grade at high temperature of at least 64 ° C
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH