It's V-belt (Serpentine belt). Replace it.
1) Remove it.
2) Clean all pulleys surfaces with toothbrush and brake-cleaner spray.
3) Put a new one. (Genuine 15$)
It's contaminated with grease/oil... loosing traction with pulley for first seconds.
Was on manual book. 4.2L thus I poured 4L and later you know...
With the same reason why you add gas between gas fills. ;)
Or you waiting until its totally gone from your tank?