New 2020 50hr service

It seems to me the 50 hour is maybe a little over kill but like others here have mentioned, it's new things are mating together and it's best to get that out. With that said, I did mine at 98hrs , and yes it had a little more debris on the magnet. Which would suggest it needed more time to break in.
The magnet is catching the crap on it and there is a filter. I can't see difference between 50 and 100hrs, but 200hrs feels way to long.

The debris amounts vary for a variety of reasons, but small debris is to be expected when you have square cut gears being broken in. I can't recall the last time someone posted debris photos from an early service interval where there was a serious mechanical problem.

There was a time when the cases were being put together with excessive RTV sealant and there were pieces of sealant found in some early service events which were extreme, with one coming to mind where they pulled nearly a cup of extra sealant strips out of the case. I have also seen individual strips of sealant which were 8" long.

In reality, when the case is machined properly, it takes very little RTV to properly seal it. When a bead is put on the case half and then mated with the other side of the case, you are going to find that the amount actually needed is more like the size of tooth pick in diameter because the sealant spreads between the surfaces and the excess is pushed out of the mated surfaces. For some reason, the machines applying the RTV were set to lay a bead much larger than needed and this went on for some time. Also, its not unusual to find the RTV for the first few fluid changes as the case goes through its heat cycles and also vibration and movement. Usually, by the 3rd hydro change, the RTV issue was no longer providing the sealant scraps in the drained fluid.

When you are doing this service, make sure to look into the case sump with a flashlight and a small, telescoping hinged inspection mirror as sometimes, there will be RTV fragments which don't drain with the fluid and you will want to get any such debris out of the case sump which doesn't belong in there. Also, its a good idea to look around in there just to make yourself familiar with what's going on in the sump........

SulleyBear said:

When you are doing this service, make sure to look into the case sump with a flashlight and a small, telescoping hinged inspection mirror as sometimes, there will be RTV fragments which don't drain with the fluid and you will want to get any such debris out of the case sump which doesn't belong in there. Also, its a good idea to look around in there just to make yourself familiar with what's going on in the sump........

Click to expand...

I would think the metal screen around the suction tube in the sump ought to prevent chunks of RTV from getting back into the system once they wind up in the sump, no? For my other vehicles, I generally insert a small rare-earth magnet on a stick into the open drain hole and fish around for 5-10 secs to see if there are any "chunks" of ferrous metal down there too. For RTV, you kinda have to get a finger (or maybe forceps) in there to grab the chunks and pull them out. Clearly we need someone to make an aftermarket transparent aluminum sump.

Transparent aluminum actually exists