Originally Posted by Redrum

i'm having car problem for some reason the car feels heavy like its draging some thing in the back. i just make a oil change last week and when it reaches 3rd shift the rpm goes to 2 and its feels slow then i press the gas it takes time to pick up. i dont know if its the oil. btw i put Mobil 1 5W-30.

i dont know if is the oil making it slow and why it takes time to pick up speed.
any help will do