The Germany international sees the reigning champions as his club's biggest rivals in the title race once more, and is eagerly anticipating this weekend's league opener
The Germany international feels that other teams could enter the race for the league title as well early in the season, but added that only BVB and Bayern will be able to keep up their title challenge right until the end of the season.
"You'll always get other teams on the pace at least for a while, but fundamentally I think Bayern and Dortmund are the two teams with the most quality and best consistency over time," Muller was quoted as saying on the club's official website.
The versatile attacker then looked ahead to this weekend's Bundesliga opener against Greuther Furth, and stressed that the newly promoted side will not be pushovers.
"[It will be] a tough match. Furth are riding a wave of euphoria after gaining promotion and they'll do whatever they can to keep a clean sheet at home," he added.
"They'll give it everything. They'll run and fight, and that's always uncomfortable. They'll be up for it and they'll push us all the way."
Saturday's encounter kicks off at 15:30CET.