City can increase their lead at the top of the table to eight points today with victory over Tottenham and extend their record-breaking winning run to 16 games.
The Blues are overwhelming favourites to make it three title wins in four years, particularly after thumping reigning champions Liverpool 4-1 at Anfield last weekend.
But newly-crowned Premier League Player of the Month Gundogan said Guardiola told his players not to take the title for granted in the away dressing-room at Anfield after their emphatic win.
“It’s very important to stay humble,” said Gundogan. “I said that after the game against Liverpool and the manager said it to us.
“It’s very important because it’s such an extraordinary season and we definitely don’t take it for granted that we’ve won 4-1 away at Anfield.
“We appreciate what’s going on for us right now and we should try to do our best to keep improving and maintaining that level.
“But we also know that in the games we’ll face difficult games against bottom sides, like we did against Sheffield United at home.
“They were a team that made us struggle a lot, so every single game has its own character and own challenge with it. That’s why it’s difficult in every single game.”
Despite that note of caution, Gundogan admitted to having the same feeling of invincibility as City did in their previous back-to-back title triumphs under Guardiola.
City won the title in 2018 with a record haul of 100 points, then pipped Liverpool by a single point in an epic tussle the following season, amassing 98 points to retain their crown.
Gundogan has the same feeling now and said: “It was the feeling I had inside of myself that you’re so strong as a team at the moment, not just yourself. That’s just an amazing feeling.
“I had that feeling a few times in the season where we had 100 points or the season after when we won the league one point ahead of Liverpool.
“You have that feeling sometimes when you feel so strong and unbeatable and that was the best moment that I had throughout the month.”
Gundogan scored five goals in January as City won all six of their league games and nine in total, a record in a single month for a top-flight club.
Against that backdrop, and with City looking unstoppable, Gundogan, 30, admitted the mood among Guardiola’s squad could not be better.
“It’s very positive at the moment, as you can imagine,” said Gundogan.
“We’re very happy, not just happy about the results we’ve got recently, but we’re happy about the way we’re playing at the moment.
“We’re grateful, we don’t take it for granted and we’ll try to continue like that.”
City’s last defeat came against today’s opponents Spurs back in November, with Gundogan warning the Blues must be at the top of their game to continue their winning run.
“We know we need to defend against them better than we did in the first game, because the way we conceded the goals was too easy.” said Gundogan.
“Offensively we can do better as well. We’re in a different moment to the first game this season, I’m sure we can do a lot of things better and hopefully we’ll be able to.”