Occasionally I have to travel on his highway that runs through a hill with a decent incline. I have been told to downshift whenever i'm climbing so i won't mess up my transmission. However, my bf said that I dont need to downshift because I have an automatic and i'm going against the car's natural response and end up messing my transmission. Whats a good way to tell when i need to downshift and when i dont? also, i noticed that sometimes when i drop a gear and then bring it back to the fourth gear again the car gets "stuck" on the lower gear for a few seconds, is there something wrong? I have an 01 automatica honda accord 4 cyclinder. please help!