 My Montero runs pretty smoothly on the 
highway and when going high speeds. 
Problem is that it is hard to pick up 
speed, and it seems to struggle when I 
am acclerating. When my car is idle, 
the engine sounds like it is working 
very hard even though it is doing 
nothing.Good thing is that you can't 
hear it very welll from inside the car 
unless the windows are down. Overall 
it has a comfortable ride, but very 
useless 3rd row seats.