wherein the mixture of the first heavy oil fraction and the deasphalting residue comprises a dispersion of deasphalting residue in the first heavy oil fraction wherein {HEAD ~ 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 {TAIL ~ at least 64° C} 
wherein the mixture of the first heavy oil fraction and the deasphalting residue comprises a dispersion of deasphalting residue in the first heavy oil fraction wherein { HEAD ~ 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 { TAIL ~ at least 64 ° C }
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 HEAD HEAD HEAD HEAD HEAD HEAD 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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL