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Ogier, who claimed his third win of the season in the Rally of Portugal last time out, picked up where he left off on Wednesday evening.
The French driver, who has also captured the Sweden and Mexico races, leads Citroen's nine-time world champion Sebastien Loeb by 16 seconds.
Mikko Hirvonen, in the second factory Citroen, was back in third place, 18 seconds off the pace.
Earlier, Hirvonen's stablemate Dani Sordo lost several minutes when he rolled his car, with it ending on its roof needing to be righted with the help of spectators.
But he ran into controversy as he re-started just in front of Ogier, who later accused him of slowing him down over several kilometres.
Loeb, racing a reduced programme this year, is bidding to maintain his extraordinary record in the event, having won every edition of this South American leg of the championship since 2005.
Standings on the second day of the Rally of Argentina on Thursday:
1. Sebastien Ogier (FRA/VW Polo) 1 h 57:14.1, 2. Sebastien Loeb (FRA/Citroen DS3) at 16.3, 3. Mikko Hirvonen (FIN /Citroen DS3) 18.1, 4. Jari-Matti Latvala (FIN/VW Polo-R) 40.7, 5. Evgeny Novikov (RUS/Ford Fiesta RS) 1:37.7, 6. Andreas Mikkelsen (NOR/VW Polo-R) 1:55.1, 7. Thierry Neuville (BEL/Ford Fiesta RS) 2:12.5, 8. Martin Prokop (CZE/Ford Fiesta RS) 6.41.4, 9. Gabriel Pozzo (ARG/Ford Fiesta RS) 10:10.3, 10. Dani Sordo (ESP/Citron DS3) 10:32.6
Stage winners: Ogier 4 (SS1, SS2, SS4, SS5), Hirvonen 1 (ESS3)
