The Royals have been in inconsistent form recently, winning two, drawing two and losing two of their last six league games and were beaten 2-0 in the EFL Cup at Arsenal on Tuesday night
While Montanier admits Jaap Stam’s men will provide a tough test for his side, the Forest boss says his players will not be travelling to the Madejski Stadium just to avoid defeat.
He said: "We don't go into any game with the intention of being happy to take a draw. We are going to Reading on Saturday with the aim of getting three points and improving our league position which isn’t good enough right now.
“Every game is a massive game for us right now. We’ve been angry and disappointed by previous results, especially the defeats at Blackburn and Cardiff, but now is the time to look forward and make improvements.
“The Cardiff defeat was particularly painful for us but we've prepared well this week and the commitment levels have been really good. We have to make progress step-by-step and cut out the individual mistakes.”
Montanier will be without a number of first-team players for the trip to Berkshire on Saturday but says the lengthy injury list and speculation over a proposed takeover of the club must not be used as an excuse.
He said: "We have nine players out right now either through injury or suspension but we have to deal with that and give 100% for the supporters. That cannot be used as an excuse or a reason for any poor performances.
"When we are not getting results, people will understandably look at my position because that is the nature of football. But we cannot afford to be distracted by this or by any other off-field talk, we have to concentrate on picking up points.
"It's been a good week on the training ground without a midweek game. The players have worked very hard in training across all areas and on Saturday we have to take what we have learnt into our performance."