This is not a good comparison 411A, as the 10-30 was packing 53 tons more than the L1011. As well, different planform, airfoils and even more differences between the two.
MTOW of the DC10-30 is 572,000lbs.
MTOW of the L1011-200 is 466,000 lbs.
http://www.caa.co.uk/docs/702/3GE069_01102004.pdf
CF6-50A rated at 218.3 kn.
T/off - 2.168 kg/s
C/out - 1.787 kg/s
Idle - 0.163
http://www.caa.co.uk/docs/702/1RR005_01102004.pdf
RB211-524B rated at 218.5 kn.
Take-off - 2.21 kg/s.
Climb-out - 1.79 kg/s.
Idle - 0.24.
So the '10-30 with a CF6-50A engine was burning less fuel in the above noted three flight phases than the the RB211-524B in the L-1011-200.
Mach .04 in favor of the L1011 for cruise speed but 53 tons lighter than the 10.