So many people, especially on the Mercedes Forums, think Mobil 1 0w-40 is unique. It ain't... Seems like Factory-Fill is M1 0w-40 only on AMG.
AGIP EXTRA HTS SAE 5W-40
AGIP Synthetic PC 0W-40
AGIP Eurosport 0W-40
Amsoil SAE 5W-30 Synthetic Motor Oil
Amsoil 10W-30 Synthetic
Amsoil Series 3000 5W-30 Heavy Duty Diesel
Aral HighTronic 5W-40
Aral SuperSynth 0W-40
Aral Super Tronic 0W-40
Aviasynth 0W-40
Castrol Formula RS Road and Track 5W-40
Castrol GTX7 DYNATEC 5W-40
Castrol Formula SLX 0W-30
Castrol TXT SOFTEC PLUS SAE 5W-30
CIFAB Synthoil Hydrocrack HC7 5W-40
Elf Excellium LDX SAE 5W-40
Esso Ultron 0W-30 (fuel economy)
Esso Ultron 5W-40
Fuchs Silkolene Pro S 5W-40 - 100% Synthetic Oil For All Race Engines
Fuchs Silkolene Pro S 10W-50 - 100% Synthetic Oil For All Race Engines
Fuchs Titan SuperSyn SL SAE 0W-30
Havoline Synthetic DS 0W-30
Kendall GT-1 Full Synthetic 5W-40
Liqui Moly Diesel Synthoil 5W-40
Liqui Moly High Tech 5W-40
Liqui Moly HC7 5W-40
LUKOIL SYNTEETIK SAE 5W-40
Mobil 1 0W-40
Mobil 1 5W-40
Mobil 1 5W-50 (first fill SLR-McLaren)
Mobil 1 Turbo Diesel 0W-40
Mobil Synt S 5W-40
Mobil Synt S Turbo Diesel 5W-40
Mobil Syst S 5W-40
Motul 8100 E-Tech 0W-40
Motul 8100 X-cess 5W-40
Pennzoil Synthetic European Formulation 5W-40
Pentosin Pentospeed 0W-30 VS
Quaker State Full Synthetic European Formulation 5W-40
Schaeffer Micron Moly 5W-30, 10W-40
Schaeffer Supreme 7000 5W-30, 10W-30, 20W-50
76 Pure Synthetic Motor Oil 5W-40
Shell Helix Plus S SAE 5W-40 (Mercedes-Benz)
Shell Helix Ultra 5W-30, 0W-40, 5W-40
Sunoco Synturo Gold SAE 5W-40 (introduced January 2002)
Total FINA First 5W-40
Total Quartz 9000 5W-40
Valvoline SynPower MXL 0W-30
Veedol POWERTRON SAE 5W-30
Veedol SYNTRON SAE 0W-30
http://www.whnet.com/4x4/oil.html
AGIP EXTRA HTS SAE 5W-40
AGIP Synthetic PC 0W-40
AGIP Eurosport 0W-40
Amsoil SAE 5W-30 Synthetic Motor Oil
Amsoil 10W-30 Synthetic
Amsoil Series 3000 5W-30 Heavy Duty Diesel
Aral HighTronic 5W-40
Aral SuperSynth 0W-40
Aral Super Tronic 0W-40
Aviasynth 0W-40
Castrol Formula RS Road and Track 5W-40
Castrol GTX7 DYNATEC 5W-40
Castrol Formula SLX 0W-30
Castrol TXT SOFTEC PLUS SAE 5W-30
CIFAB Synthoil Hydrocrack HC7 5W-40
Elf Excellium LDX SAE 5W-40
Esso Ultron 0W-30 (fuel economy)
Esso Ultron 5W-40
Fuchs Silkolene Pro S 5W-40 - 100% Synthetic Oil For All Race Engines
Fuchs Silkolene Pro S 10W-50 - 100% Synthetic Oil For All Race Engines
Fuchs Titan SuperSyn SL SAE 0W-30
Havoline Synthetic DS 0W-30
Kendall GT-1 Full Synthetic 5W-40
Liqui Moly Diesel Synthoil 5W-40
Liqui Moly High Tech 5W-40
Liqui Moly HC7 5W-40
LUKOIL SYNTEETIK SAE 5W-40
Mobil 1 0W-40
Mobil 1 5W-40
Mobil 1 5W-50 (first fill SLR-McLaren)
Mobil 1 Turbo Diesel 0W-40
Mobil Synt S 5W-40
Mobil Synt S Turbo Diesel 5W-40
Mobil Syst S 5W-40
Motul 8100 E-Tech 0W-40
Motul 8100 X-cess 5W-40
Pennzoil Synthetic European Formulation 5W-40
Pentosin Pentospeed 0W-30 VS
Quaker State Full Synthetic European Formulation 5W-40
Schaeffer Micron Moly 5W-30, 10W-40
Schaeffer Supreme 7000 5W-30, 10W-30, 20W-50
76 Pure Synthetic Motor Oil 5W-40
Shell Helix Plus S SAE 5W-40 (Mercedes-Benz)
Shell Helix Ultra 5W-30, 0W-40, 5W-40
Sunoco Synturo Gold SAE 5W-40 (introduced January 2002)
Total FINA First 5W-40
Total Quartz 9000 5W-40
Valvoline SynPower MXL 0W-30
Veedol POWERTRON SAE 5W-30
Veedol SYNTRON SAE 0W-30
http://www.whnet.com/4x4/oil.html