Bimodal copolymer compositions useful as oil modifiers and lubricating oils comprising the same

A lubricating oil comprising:

• (1) at least 50 wt % of a base oil, based on the weight of the lubricating oil;
• and
• (2) a copolymer composition comprising:
• (a) 30-70 wt %, based on the weight of the copolymer composition, of a first ethylene-α-olefin copolymer component comprising (i) 50 to 85 wt %, based on the weight of the first ethylene-α-olefin copolymer component, units derived from ethylene and (ii) units derived from a C3-C20 α-olefin comonomer, having melt flow rate MFRA within the range from 0.5 to 9.5 g/10 min (ASTM D1238, 230° C./2.16 kg);
• and
• (b) 30-70 wt %, based on the weight of the copolymer composition, of a second ethylene-α-olefin copolymer component comprising (i) 40 to 60 wt %, based on the weight of the second ethylene-α-olefin copolymer component, units derived from ethylene and (ii) units derived from a C3-C20 α-olefin comonomer, having MFRB within the range from 0.1 to 1.75 g/10 min (ASTM D1238, 230° C./2.16 kg);
• and
• further wherein the copolymer composition has each of the following:
• (i) overall ethylene content within the range from 15 to 85 wt %, based on the weight of the copolymer composition;
• (ii) MFR within the range from 1.0 to 6.0 g/10 min;
• (iii) corrected Melt Flow Rate Ratio (cMFRR, defined as MFR at 230° C./21.6 kg divided by MFR at 230° C./2.16 kg, ASTM D1238, corrected to a reference MFR of 4.3 g/10 min (230° C./2.16 kg)) within the range from 25 to 45;
• and (iv) Tm>3.31*E−186° C., where E is the ethylene content of the copolymer composition.