I tried searching and couldn't come up with anything, not sure if its just my terms or not.
I'm planning on changing my Diff.(LSD) fluid out with redline 75w90 but not sure if I need to flush it with anything. I didn't think going from unknown fluid right to synthetic would be ok. I don't mind running something else through the diff. if it matters, I'd like to do it right the first time.
Should I just get 3qts, change it then put some miles on it and change it again to get all the old fluid out? Or, just simple drain and refill?
I'm planning on changing my Diff.(LSD) fluid out with redline 75w90 but not sure if I need to flush it with anything. I didn't think going from unknown fluid right to synthetic would be ok. I don't mind running something else through the diff. if it matters, I'd like to do it right the first time.
Should I just get 3qts, change it then put some miles on it and change it again to get all the old fluid out? Or, just simple drain and refill?