Ok guys, I tried searching and reading up on this but it's too damn confusing. Plus, the situation with MY car doesn't make sense. I have ONE wrench showing and it says 100 on it. Yet, the dealership I just bought the car from changed the oil so the sticker says I need an oil change in 6,000 miles.

SO! My question is, how the hell do the wrenches work and service A or B etc... AND, what is the rule of thumb with this car? How often does the oil need to be changed? My Charger SRT8 runs on Mobil1 0W40 (same oil) and it's only every 5,000 miles. Is this car truly 7,500 miles???

Please help... And the maintenance manual that came with the car is confusing as hell. It lists every possible checkup procedure for EVERY maintenance period! And it doesn't give mileage either... Very different from how my charger's maintenance book works...