I suspect you have allready searched this topic so for others who might read this thread that have not and have simular questions in mind...... there well could be references to that info in the many tranny oil threads that are located in forums both here at benzworld and in the archives of the Mog Mail list.
Archives the the mail list are at Unimog Discussion and Archive Search :: Index
. MME Archive holds 1997 and up to today.
.. 97-2005 is in it's own locked readable/searchable forum
.. 2006-2008 is in the mail list mirror forum and fully active.
Maybe my experience with U-1300 trans lube will be of some benefit as you deside on a lube to use. I recently purchased a U-1300 which had the MB specified (modern specs, not pre-synthetic specs) Castrol Syntrans. The transmission shifted ok except for 5th gear. I asked around and several longer term SBU owners told me these trannies are known for poorly shifting 5th gears. In fact, some are so bad that the owners skip 5th gear, especially when cold. The fellow who sold me the 1300 actually told me to start in 5th to avoid having to shift into it. That was too hard on the clutch.
A suggestion was made that synthetic lubes lubricate the synchronizers too well, not allowing the friction that a synchronizer relies on to do it's job. Also, a light weight oil, like the 10W you wanted specs on, was suggested to allow gears to 'spin-up' easier. So I switched the lube over to a good quality 10W hydraulic oil that I had available. Shifting improved, but 5th still gave trouble.
By coincidence I was looking for a recommended lube for my Dodge 2500 with the NV-5600 6 speed manual. Found reference to a transmission lubricant that Amsoil makes that is specifically recommended for the NV-5600, and any synchronizer-type transmission, Amsoil's MTF trans lubricant. It is a very light oil, rated 5W30, as is the 10W. I bought 5 gallons and tried it in the U-1300. What a difference! 5th gear now shifts like other gears. I've not had a single failure-to-shift since changing the fluid, and that's about 1000 miles now.
As a check on lubricating quality, I have checked the transmission temp after some hard highway driving (Interstate, 60-65 mph). Tranny temp runs 160 to 170. Not bad at all. I have heard of some SBU owners having to put coolers on their trannies to cool them off.
Note to admins: This is a popular thread on other car forums, but I didn't see one here (and I did search). If there is one, please direct me to it
Last weekend I sandblasted a skid plate I recently bought. This poor thing had been through hell, with about 6 different coats of paint on it...
my spare wheel is going to live on the tray.
Who has the spare on the tray too? How do you get it on and off the tray? Anyone mounted a spare vertical on the tray?
Looking for practical ideas.... got lost on google...
Yeah...... after much prodding looks like I finally got the powers to be to add youtube viewing on this board.
Now you can post youtube right into your post for viewers to watch.
BE AWARE... this particular set up is the rare one where you only put the funky secret code looking letter name...
So, I want to have beadlocks on my truck for 2 reason:
1. I hate loosing a bead.
2. I anticiapte running the US Mil Surp tires for the forseeable future, they need to be run at low pressures to perform well.
The UNIMOG 11" rim is more susceptable to debeading with these tires than it should...
well, some folks may call me nuts. But I did it and here is my "new" 1250. Right now en route from Baltimore to Colorado.
I am hoping not to start a controversial discussion about self-importing or better buy a newer rig.
Going to restore the girl as I did with other oldies :)
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