after how miles should you change you transmission oil for a 2007 charger

 

I did mine at 30K and will keep up that schedule. And don't just do a change, do a flush.

 

How much did you pay for a flush?

 

I honestly don't remember, I had other work mixed in.

 

probably like $160 ish, if you do it at the dealership. I think quick lube place charge around $100, But I recommend go to a real shop for any car work.

Book said every 60k for trans, 48k for rear differential.
But most ppl recommend 30K for trans and 45k for rear Dif. it makes a difference in the long run. The older Nag1 trans had some problem with Water getting into Trans fluid over time. better to do fluid flush more often

 

is it possible to do my own tranny flush or no ?