City striker Aguero's 63rd-minute goal steered his side to a 1-0 victory over their local rivals Manchester United at the Etihad Stadium on Sunday.
And it leaves Manuel Pellegrini's third-placed men six points behind unbeaten leaders Chelsea, who have taken 26 points from a possible 30 this term.
The win over United came after back-to-back defeats for City, in the Premier League to West Ham and then the Capital One Cup to Newcastle.
And Aguero told City TV: "It is important to win.
"Chelsea are doing very well and they keep winning but we have to go on and I'm sure they will drop some points.
"They play at Liverpool next weekend and we will see if they drop points but the important thing is that we have to win games."
Aguero's clinical finish from Gael Clichy's cut-back took the 26-year-old Argentina international to 10 Premier League goals for the campaign.
He is currently the division's top scorer, but Aguero's focus is on the points he can help the team gain rather than individual accolades.
"There is a long way to go," he said when asked about leading the scoring charts.
"It's important to continue like that and it is important that all the goals mean that we win games.
"I always say that goals are great when they mean victories."
Source : PA
Source: PA