I need to change the fluid in my '05 NV5600. I plan to pull one of the side covers to drain the oil since there is not a true drain plug. As far as putting the cover back on and sealing it up, what would you recommend? Black RTV Gasket Maker?
I am going back with the recommended Pennzoil factory fill + 1 qt.
TIA for any thoughts.
I called Blumenthal's as they are the OEM rebuilder, and asked about my transmission- how much fluid, and which one do they recommend.
I was told to put 8 qts. in it (no coolers or filter), just with the PTO covers. Filling from the top (removing shifter).
With my coolers (Trans-Cool from Geno's)- 1qt extra per cooler.
I told them I'm using one cooler and a filter on the other side. That set up needs 9qts.
If towing heavy- 10qts (only with PTO covers- with coolers add 1qt per cooler).
Change every 18000-25000 miles.
This was for my truck's NV5600. I do not know if they differ in different MY. But if I were you, I'd call.
Also on the fluid- only one was recommended, the Pennzoil Synchromesh, which I have been always using, except once to try the Amsoil's MTF, but it wasn't working good for me.
They were very nice (Blumenthal's), I talked to the service manager.
This is what I have from them and I hope this helps.
Again I strongly recommend calling them for your MY truck. They are very nice and will answer all your questions.
My transmission surely shifts really good and when I start feeling different shifting, notchier, I change the fluid, which is pretty much at the mileage they recommend.
Good luck.
Ilian