Might have found a fix for hard shifting

[Gary - K7GLD]

"You mean 140 in the diff,not the six speed, right?"



OOOOOPS!



Yes, you got it! I used the 80/90 Amsoil in the transmission because it was what was recommended for towing service... I edited and corrected my post above



Sorry...



AND, while I'm at it, lest I create a false impression, the "improvements" in shifting mentioned above are very slight - hardly enough on their own to warrant a switch to synthetics - and probably more than offset to most by the gear grind when cold...

 

[Texas Diesel]

Originally posted by amsoilman

Someone tell me where this magnet is on the NV-5600 transmissions. I just changed out the lube in my2003 NV-5600 and there is no drain plug, and no magnets either. The book tells you to remove the lower bolt from the PTO Cover to drain the fluid out. I refilled it with Amsoil 5W-30 Synthetic Motor oil.



Wayne

amsoilman

I have never been able to find a magnet in the 5600. This applies to the original and replacement one.

 

[HeberRam]

On the subject of manaual trans fluid... . Has anyone used Energy Release in their transmission's??? I've used in the past in my powering steering and engine with good resuts, however, not in the transmission. . I'm installing this week fast coolers on the transmission, and thinking of adding some Energy Release to aid in the shifting... ... Haven't tried prolong, yet either???



Steve



http://www.energyrelease.com/products.asp?Family_ID=1

 

[Ram4Sam]

I found a magnet...

Wayne, I found a magnet when I changed fluid and added FastCoolers. It was a small piece of flexible(rubberized?) magnet about 1/2" x 1-1/2", maybe 1/8" thick. It was sticking itself to the bottom of the trans case. I found it with my finger while wiping out the last bit of gear oil. I just wiped it off and put it back in the bottom of the case.



Sam

 

[Bob Cochran]

Wayne found the same thing in mine as Ram4Sam did. Found almost by accident is easy to miss.

 

[amsoilman]

Gary,

I Hope you didn't misunderstand me on the 6-speed (NV-5600)transmission oil. It calls for a SAE 5W-30 engine oil, and not a gear oil.



When comparing SAE oil grades with SAE gear oil grades, the SAE 5W-30 is:9. 3 Min. cSt@100 C. while the SAE 80W-90 gear lube is:13. 5 cSt Min. On the maximum side the SAE 5W-30 is:

<24. 0 cSt@ 100C. while the SAE 5W-30 is <12. 3 cSt@100 C.



I used the 5W-30 in my 03' NV-5600 and it shifts very smooth, even in our colder 20 degree weather here in Utah now.



Wayne

amsoilman

 

[Texas Diesel]

quote:

"... 6-speed (NV-5600)transmission oil. It calls for a SAE 5W-30 engine oil, and not a gear oil. "





Just curious, where did you read that the 5600 calls for 5W-30 motor oil?



The only spec'd oil for the 6 speed I know of is Texaco MTX (whatever).



It would be nice if NV or DC gave us some some options as to what lube to use.

 

[Pit Bull]

Originally posted by amsoilman

Gary,

I Hope you didn't misunderstand me on the 6-speed (NV-5600)transmission oil. It calls for a SAE 5W-30 engine oil, and not a gear oil.



When comparing SAE oil grades with SAE gear oil grades, the SAE 5W-30 is:9. 3 Min. cSt@100 C. while the SAE 80W-90 gear lube is:13. 5 cSt Min. On the maximum side the SAE 5W-30 is:

<24. 0 cSt@ 100C. while the SAE 5W-30 is <12. 3 cSt@100 C.



I used the 5W-30 in my 03' NV-5600 and it shifts very smooth, even in our colder 20 degree weather here in Utah now.



Wayne

amsoilman

Wayne, since Gary used the wrong lube will this mistake damage his transmission? Does he need to flush the old 80/90 stuff out before he puts in the correct lube? Gary keep us posted on your transmissions operation after you get the right stuff installed

 

[Gary - K7GLD]

HMMmmm - that is annoying - as well as expensive...



I had originally asked for specific recommendations for appropriate Amsoil products to use for replacement in my 6-speed and differential, especially with towing in mind - and received suggestion pointing to the Amsoil AGL-80w/90 and the TGO-75w/140... Where the confusion occured is hard to understand - but in any event, about $50 worth of lube outta the transmission WILL be drained and tossed -and replaced with whatever the local Dodge service department is currently recommending... live and learn...



Another graphic illustration of why it's best to stick with the factory recommendations...

 

[Sled Puller]

Originally posted by Gary - KJ6Q





Where the confusion occured is hard to understand ...

There is probably only several hundred posts talking about the Amsoil 5W-30 in the 6 speed.

Where in the world did you come up with the 80-90?

 

[Gary - K7GLD]

"Where in the world did you come up with the 80-90?"





WELL,



"I had originally asked for specific recommendations for appropriate Amsoil products to use for replacement in my 6-speed and differential, especially with towing in mind - and received suggestion pointing to the Amsoil AGL-80w/90 and the TGO-75w/140"





What part of the above did I not explain clearly?



Let me emphasize, *I* was asking for an Amsoil replacement for the stock stuff specifically suited for heavier duty TOWING use - capeesh?



There was an obvious misunderstanding related to what I was asking, and the response I received - no point in beating a dead horse - the Amsoil will be drained and tossed, and replaced with stock stuff - end of story...

 

[fj40charles]

I still don't even know why we're still having this discussion. AFAIK, Texaco MTX 1874 was/is the only oil that is factory recommended for the NV5600. I don't know where the amsoil folks are saying their oil is factory recommended.



Am I missing something here?



BTW, I use amsoil series 2000 75W-140 gear oil in the diffs.



Charles

 

[Gary - K7GLD]

Charles, as I understand it, Texaco no longer makes the DC recommended stuff for the NV-5600 - and I haven't heard who now makes what is being used or recommended by NV or DC for these trannies - in any event, I am well aware of what is SUPPOSEDLY the recommended stuff in "normal" service, but was wanting something better for use in towing service, much as you have gone to the 75/140 stuff in your differential instead of what comes stock - in fact, as pointed to above, I'm using the same stuff you are in my differential - for the same reasons - I wanted something better than stock for my transmission, too...

 

[fj40charles]

Gary,



I think Shell now owns Texaco. I don't tow much so I don't worry about it much. I have a few gallons of the stuff to last me a long time...



Charles

 

[Gary - K7GLD]

Charles, I'm assuming you also have the LS differential, and been running the 75/140 for a while - do you find you need the LS additive with the Amsoil - I haven't so far...

 

[fj40charles]

Gary,



Not running LSD additive with the amsoil gear oil.



Charles

 

[Vaughn MacKenzie]

Like I said: RedLine, RedLine, RedLine!

I keep posting this, and I still wonder why everyone keeps hashing around about what synthetic lube to use in the 6-speed; RedLine MTL is the best answer IMO. Fully synthetic, correct weight (5W30), and is designed to be used as a gear lube in manual transmissions, comes with the high-pressure and shock additives not typically found in engine oil. The stuff smells nothing like engine oil, and has a similar scent of gear oil though not as strong.



I ran the stock lube 50,000 and it was very filthy & black after that many miles. It had a lot of city driving, IE, heavy use of ALL gears. I had shifting problems since new (hard to get into 1st or reverse, heavy shifting, notchy).



At 50,000 I drained the stock crud and went with Amsoil 5W30. Shifting improved somewhat, but after 15k it was back to its old ways. I ran the 5W30 for 30K then drained it last week. It was fairly dirty and looked fairly metallicized.



I refilled with RedLine MTL and the improvement was immediate. Shifts better than it ever has by a considerable margin, about twice the improvement over the Amsoil. Time & miles will tell how the RedLine holds up in the long run, but for now it's what I'm sticking with!



I know many have run the 5W30 Amsoil with great results, but I would encourage everyone to consider RedLine MTL.



I have a multicultural lube inhabitation in my truck: Mobil Delvac in the motor, RedLine in the transmission, and Amsoil in the rear end! LOL



Vaughn

 

[Pit Bull]

Re: Like I said: RedLine, RedLine, RedLine!

Originally posted by Vaughn MacKenzie



I have a multicultural lube inhabitation in my truck: Mobil Delvac in the motor, RedLine in the transmission, and Amsoil in the rear end! LOL



Vaughn

Good to see your PC I am 20K miles away from changing my fluid, so keep us posted on how the RedLine works out.

Thanks for being a Pioneer

 

[Texas Diesel]

Another option is Royal Purple Synchromax, it is 100% synthetic and rated for manual transmissions. RP says it is a replacement lube for trannies that call for ATF or light weight oil and is safe for 'yellow metals'. Sounds very simular to the RedLine MTL.



Be advised: The spec'd oil is NOT 5W-30 motor oil , and any use of other lubes will place your warranty in danger. However, given the failure rate of the 5600 (I've had two) a better lubricant is needed. Some members have used 5W-30 motor oil with excellent results.

 

[FDziurda]

Texaco MTX 1874

I bought a 5 gallon pail of Texaco 1874 from a local wholesaler (Allied Petroleum-Reno) last year for $68. I would suspect 1874 or an approved NVG replacement is still available.



Considering the replacement cost of the NV-5600, I didn't think it was worth experimenting with different kinds of lubrication.



Frank