I was going over this thread...
https://shoforum.com/index.php?threads/sm105ks-ownership-performance-maintenance-thread.138235/
And its not quite clear enough on what oil is used for the RDU and how frequently it needs changed, does anyone have any input on this? I am looking to get a whole bunch of fluids changed sometime soon.
That guy runs Redline Lightweight Shockproof fluid in both the RDU and PTU. IIRC below are the fluids and intervals he changes his fluids. He also has his PTU and RDU drilled and tapped, so that makes it easier. I also I would take in account that he even says this is an extreme maintenance schedule.
Oil: every 3k miles (Castrol Edge with either a Motorcraft or Mobil 1 filter)
Trans Fluid: every 3k miles 5 quarts out, 5 new quarts in. (Mercon LV)
Brake Fluid: every 10K miles.
Changed at 69K
PTU Fluid: every 10k miles (Redline Lightweight Shockproof Fluid)
Changed at 80K.
RDU Fluid: every 20k miles (Redline Lightweight Shockproof Fluid)
Changed at 69K
Coolant: Every Year. 50/50 mix.
Changed at 69K
For a daily driven SHO that you get on once in awhile.......
Oil: every 4k-5k miles (Castrol Edge with either a Motorcraft or Mobil 1 filter)
Trans Fluid: every 6k miles 5 quarts out, 5 new quarts in. (Mercon LV)
Brake Fluid: every 30K miles.
PTU Fluid: every 20k miles (Redline Lightweight Shockproof Fluid)
RDU Fluid: every 30k miles (Redline Lightweight Shockproof Fluid)
Coolant: Every Other Year. 50/50 mix.
