Pep Guardiola's side sit 13 points clear at the top and will be crowned champions if second-placed Manchester United lose against Liverpool on Sunday.
After a tepid first half in south London, it was fitting that Aguero -- the architect of so many big moments in City's history -- should open the scoring with a typically lethal finish. Torres killed off Palace two minutes later as City eased to an 11th successive away victory in the Premier League, equalling the English top-flight record.
Even if United do not slip up against Liverpool at Old Trafford, City have four matches left to secure the one win they need to clinch the title, starting with next Saturday's home game against Chelsea. It is a matter of when not if City add the Premier League to the League Cup they won against Tottenham in April.