I have a 2007 Magnum R/T with a 5.7. I has 180,000 miles.

At 100,000 I had the transmission and the cooling system serviced.

I also replaced the spark plugs at 100,000.

I have replaced the batteries every five years or so.

Fairly recently I had the serpentine drive belt and hoses replaced.

I change the oil and filter every 10,000 miles normally with Mobil 1.

It still seems to be going strong.

I don't drive it now near as much as I used to and I will probably go to annual oil changes without regard to the mileage.