City boss Mancini reacted angrily towards Aston Villa manager Paul Lambert after City's midweek Capital One Cup defeat.
And Jol admits the Italian's reaction to defeat marks him out from other Premier League managers.
He said: "I think he is probably a bit different. If he wins he's fine and if he loses he's probably a bit...
"I feel that, of course, Mancini is a winner and he wants to win.
"And he must win because if you are at Manchester City almost every game is a must-win game. So that probably puts a bit more pressure on him. But in the Premier League there is pressure on all the managers."