look in your manual but don't put it all in at once.... the hemi says 7, but that's bone dry at assembly, you never get it all out in an oil change, start with 6 or 6.5, check it then run it for a few seconds and turn it off, let it settle a minute then check it again, then add to get it to the top line.
Not sure what is spec'd for V6 so check manual to get you close.
2008 Black (the fastest!) R/T R&T
fully loaded except OEM HID's and Rear Seat Entertainment.
Mods: AFE stage 2 CAI, Seat belt persistent warning deleted, Painted Calipers, Grille Lighting CCFL and strobes, Shaved Rear Ram Head, "Black Betty" 3rd brake light mask, Door lock rings, Apexcone/DDM Tuning HID Conversion (all 3), Tinted Tails, OEM SRT Hood, Recarro Seat (for my son), Ceramic Window Tint by Huper Optic