F150 TXR Lower unit fluid usage?

[angler53]

How often do these units require fluid to be added?
I changed the fluid at 75 hours, time sense new. I checked it tonight and it took about 4 to 5 pumps to fill. Dummy me didn't check the amount in the container before adding any because I really didn't think it would take any. Its been run 27 hours sense it was changed. I checked it a few hours after changing and it was full. So with a little math I figure it took 4oz. Is that a lot for so few hours in use?
Thanks,

 

[JUSTINTIME]

Re: F150 TXR Lower unit fluid usage?

sounds like u did not fill right when u replaced it

 

[angler53]

Re: F150 TXR Lower unit fluid usage?

I think you're right. I'm not absolutely sure it was full after changing it because I didn't measure what went in. I raised and lowered the motor a few times and rechecked and it appeared to be full. I checked it again after running it to be sure and it was full, or it appeared so, anyway.
There is no evidence of a leak because I keep it in the garage and I would know. Besides it's always clean down there, too.
I hope I haven't damaged anything, or shortened its life by running 27 hours being 4oz low. There's no vibration or any other anomalies that would indicate damage. Four ounces is not much but I am concerned, to say the least. I learned a valuable lesson with this and you can bet yo az I'll measure 33.13 oz from hence forth, too.