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Topic Review (Newest First)
01-29-2011 11:32 AM
benaldridgejr Really cool info.
And to update, the Syncromesh is AWESOME! I highly recommend it!
01-28-2011 09:43 AM
wasomma
Quote:
Originally Posted by benaldridgejr View Post
Pretty much all of it came out,i put in 3 qrts of syncro and its not full so i suppose most came out. i may run it a bit and redo it again. Its only about 28 bucks. Thanks for the input. I read that sycro (as well as the royal purple stuff) and gl5 are compatible and others had done a 2:1 ratio of them due to the thickness also.. I prefer one fluid at a time but idk.
Its the phosphates in GL5 that reacts with some of the metal components of the ax-15's gears/synchros because of its age and the type of metals used in its components

Quote:
GL-4; Specified for hypoid gear service under severe service but without shock loading. This classification is essentially obsolete but is still specified by some manual transmission/transaxle manufacturers. Implies an EP/AW additive package that contains 30% to 50% less S-P additives than the GL-5 service classification. Some Marine Gear Lubes fall into this classification, especially the full Synthetic Marine Gear lubes and specialty blenders MT lubes that use high levels of esters.

GL-5; Specified for hypoid gear service but with shock loads and severe service operation. Usually meets Mil-L-2105D and in most cases, is the multipurpose automotive gear oil. Most 75W90 to 75W140 grades meet the GL-5 classification. This grade has a high level of Extreme-Pressure additives that could be mildly corrosive to nonferrous parts, such as brass, bronze and aluminum parts. Most of the modern GL-5 lubes contain metal deactivators that prevents attacks by the extreme-pressure additives. In addition to EP additives, these lubes contain rust inhibitors, defoamants, friction modifiers, thickeners, and Viscosity Index Improvers.
http://theoildrop.server101.com/ubb/...;f=21;t=000029
If you're interested read this:

Gear Tribology and Lubrication - Part I - Bob Is The Oil Guy

EP Additives - Lubricant Rheology and Tribology - Bob Is The Oil Guy

This guy is good too---->

Quote:
What's different in the chemistry?
This is answer changes by the blender. Each blender has different additives to make their oil pass certain ASTM tests reviewed by the API. These tests might involve corrosion resistance, gear distress, scoring, oxidative stability, deposit formation, etc.

I can tell you a secret. If your GL-5 also meets the API MT-1 spec, then you're really on to something. I'm not saying you'll be able downshift to first at 18MPH, or that your gears will never grind, or any of the "smooth" talk that I see so much. But your gearbox metals will be more fully protected.

One more thing. Some talk is going around about GL-5's not protecting the yellow metals. Any responsible blender is going to use additives to inhibit corrosion, but the GL-5 spec DOES NOT require the blender to test the ASTM D 130 which directly relates to copper alloys. The answer is using a GL-5 that passes the MT-1 spec too.
GL-4 vs. GL-5 - NASIOC
01-27-2011 04:15 PM
benaldridgejr
Quote:
Originally Posted by Wizzardj
Ok I read this whole post and I have a 1998 yj automatic what is the fluid to use in it. Cause I need to change it cause I got water in the tranny.
Does it not say on the stick what ta use???

Use maxlife dexron, its the good stuff, we put it in EVERY vehical we flush at the shop, including a couple Jeeps, its even used for certain Nissans and Fords requiring SLF..(dealer fluids lol)
01-27-2011 04:12 PM
benaldridgejr
Quote:
Originally Posted by wasomma

synchro or mt90 is the magic juice, just make sure you get ALL of the old fluid out before you switch anything
Pretty much all of it came out,i put in 3 qrts of syncro and its not full so i suppose most came out. i may run it a bit and redo it again. Its only about 28 bucks. Thanks for the input. I read that sycro (as well as the royal purple stuff) and gl5 are compatible and others had done a 2:1 ratio of them due to the thickness also.. I prefer one fluid at a time but idk.
01-27-2011 12:20 PM
wasomma
Quote:
Originally Posted by Wizzardj View Post
Ok I read this whole post and I have a 1998 yj automatic what is the fluid to use in it. Cause I need to change it cause I got water in the tranny.
Automatics use ATF (automatic transmission fluid) not any of the 75w90 gear oil
01-27-2011 12:19 PM
wasomma
Quote:
Originally Posted by benaldridgejr View Post
I went with Syncromesh after adding up all the choices people have made here on WF. Ill update after a while. It already feels ta be smoother. Also as the 80w90 GL5 came out it was sparkling a tiny bit.. Fudge that stuff.. Lol
synchro or mt90 is the magic juice, just make sure you get ALL of the old fluid out before you switch anything
01-26-2011 06:49 PM
benaldridgejr I went with Syncromesh after adding up all the choices people have made here on WF. Ill update after a while. It already feels ta be smoother. Also as the 80w90 GL5 came out it was sparkling a tiny bit.. Fudge that stuff.. Lol
01-21-2011 04:41 PM
wasomma gl4 gl4 gl4 gl4 gl4 gl4 gl4 gl4 gl4
01-20-2011 09:02 AM
benaldridgejr So is there an agreement here on Penzoil Syncomesh? Or Synthetic 75w90? Or... Idk..i have an Ax-5 thats on the way and i want the best for it.. And wanna change the transfer case fluid too.. Whats the best for that?
01-01-2011 05:45 PM
Wrangler Haven If you have a '98 YJ, then you have a Jeep from the Twilight Zone my friend. In this dimension they stopped making the YJ in '95.
01-01-2011 12:14 PM
Wizzardj Ok I read this whole post and I have a 1998 yj automatic what is the fluid to use in it. Cause I need to change it cause I got water in the tranny.
12-31-2010 09:06 AM
sbaird Ive tried a few different kinds of tranny fluids, the best two ive found is Redline MT-90 or Penzoil syncromesh.
12-31-2010 07:38 AM
birtydugger x2 with devdawg..go with .gl4....the soft synchros in the gearbox dont like gl5!!..royal purple syncromax in transfer..and 75w90 max gear in gearbox..its gl-4 and gl-5 compatable!!..then u cant go wrong!!..lol
12-30-2010 04:53 PM
falatude
Quote:
Originally Posted by Wrangler Haven View Post
I don't care who superceded what # to what. The Factory Service Manual lists the Tranny fluid as SAE 75W-90, API Grade GL-5 by the friggen people that designed and BUILT the Transmission. You could probably put cat piss in there and it would be just fine too.
For awhile.
+1, WTF.....follow the freekin manual!!!!

Already been like 6 separate threads on this subject
12-30-2010 03:20 PM
DevDawg stay away from from GL-5, it contains sulfur compounds that will corrode the brass synchros in your tranny.
08-28-2010 10:12 PM
UABYJ94 It's all good my fellow jeeper.. Don't sweat it at all..
I didn't take it the sense of bashing that my typed response made it sound..
Peace to you and happy tails ahead..
08-28-2010 08:29 PM
wasomma also UABYJ94 i was rereading some of my posts and I realized I was kinda bashing your way of doing things, so my apologies, life goes on true
08-27-2010 12:37 PM
wasomma
Quote:
Originally Posted by UABYJ94 View Post
Now don't tell me the dealership made an error,,,,
I mean they are ASE certified and went thru extensive training to work on our vehicles that were built by the very company that sent out the recalls....
You don't suppose that the mechanic missed the memo on putting everything back that they took loose when repairing the recalled item do you....
yea seriously, ALL OBEY THE STEALERSHIP
08-27-2010 10:43 AM
Wrangler Haven Been down this road before. It took me two days after that recall, to figure out that they forgot to hook my wire back up. I went storming back in there and told the service manager that he had a bunch of monkeys working in there.
How hard can it be? If you unplug it, PLUG IT BACK IN!!
08-27-2010 10:32 AM
UABYJ94 Now don't tell me the dealership made an error,,,,
I mean they are ASE certified and went thru extensive training to work on our vehicles that were built by the very company that sent out the recalls....
You don't suppose that the mechanic missed the memo on putting everything back that they took loose when repairing the recalled item do you....
08-27-2010 09:42 AM
mcheneyjr Well go figure it was that ground wire.. I connected it and fired right up..
08-26-2010 05:39 PM
mcheneyjr Man i am going so pissed if thats the problem. Unfortunalty is locked up in a buddys shop for the night, but yea thats what they replaced then it wouldnt start..
08-26-2010 03:19 PM
UABYJ94 You are right I should let people know,, I guess it wsa an assumption on my part that people would kno gear oil for standard is by the book.
I didn't mean for it sound as strong as it came out about being bashed..sorry for that one..
I guess those who aren't acustomed to working or even changing their own fluids would think because an auto takes atf that they could just as easily stick in a standard.
Point taken very well.
08-26-2010 02:33 PM
wasomma
Quote:
Originally Posted by UABYJ94 View Post
I have read those figures before aswell and agree the 10w40 is closer but the difference is not enough to spend the extra bones on gear oil when I get the same result from motor oil without any consequences. I know and agree that the factory calls for gear oil and most people use it. That was never my disagreement. It was with the fact of someone saying it will not work or last when it has already been proven time and time again that it does and will last..
It's all about personel preference.. this is one of soooo many things we all choose our own path on, but that does not give anyone a rite to bash another for their chose that works for them without harm..
I hear you man on the fact that it is working for you. Thats great and awesome. It is definitely a plus that you are letting people know your mod. But you probably want to preface your advice by letting people know what the factory says to use and then what you actually use that way people can make an informed decision. What you are doing is working fine, just make sure they understand its not what the book says.

PS no one is bashing you
08-26-2010 01:50 PM
UABYJ94 If the recall they were working on first was the e-brake recall then tell there dumba$$ to hook the fuel pumps ground wire back up to the mounting bolt of the e-brake or to the tub somewhere..
THere are posts all over the net where ppl take there jeep in for the e-brake recall and the idiots didnt hook the ground wire back up...
08-26-2010 01:13 PM
mcheneyjr OK not to continuely bash on dealerships but you really need to hear the shit thats going on now...
I dropped my jeep of at the local dealership this morning to have five recalls fixed. I got a call about 10:30. They drove me Jeep into the shop replaced one of the recalls went to move it to another stall and it wont start. I hooped in my dads truck and went down there. They wanted $120 dollars to run a diagnostic test luckly for me the tec went to lunch and left the diagnostic unit plugged in my Jeep i ran a couple quick tests while no one was looking didnt come back with any codes... They said there is no pressure in the fuel lines so im bout 100% its the fuel pump. The want $277 for labor and me to bring the $90 pump. So a total of $367. They wont come of that at all they say even though it happened in there possesion they arent at fault. I was so pissed i couldnt see strait.
F*** a dealership when they finish with the recalls im gonna tow it to my mechanic..
08-26-2010 11:06 AM
UABYJ94 this is healthy discussion,nothing for hating on..lol
I wish no ill will on anybody who has passion for what they believe.
I always try to keep an open mind on new ideas and if someone can prove there is a cheaper and just as effective way of doing something, then I will by all means give it a try.
That is what all forums were designed to do ,,let ppl put their ideas and successes and failures out here to help others coming up behind them.
The whole point of being an enthusiate is to be passionate about what you are doing.
To help aid in knowledge or repair of the very thing you love, whether it be yours or you fellow man/woman.
08-26-2010 10:35 AM
mcheneyjr Man i didnt mean for this to turn into any kind of discusion. I got wanted to inform other owners that just because a Jeep dealership is what i would have thought was a good source for info on my Jeep doesnt mean they have any clue as to what they are saying. Yall do have alot of good info in the subject though.
08-25-2010 08:05 PM
UABYJ94 I completely understand what you are saying WH, but if we kept everything the same as when it came factory,because it worked, then there would be no modified jeeps on the road. Everything someone is using on their jeep or even in there jeep that wasn't an oem part on it when it sold off the lot is being made and used by others because someone before them had the light bulb above the head thinking hmmmm I wonder?????
So many ppl are afraid of something new or different because it's out of their box, but it doesn't neccesarily make it a bad change.
Because my jeep came factory with 5w30 grade does that mean my engine is going to quit because I changed that grade too?
If it has been proven to work and not be detrimental to our jeep what makes it wrong?
We change most every part of our jeep compared to the way it came from the factory in almost every other sense of the word and I dont se these as different as apples and oranges either.
I did alot of research myself after hearing about it the first time because I thought the samething as you,, "This has got to be the dumbest idea anybody could ever think up,,hummmmfh,, putting engine oil in my tranny,,what an idiot..."
After doing research for several days and seeing so many pros and not the first con,,other than hear say, I decided I would try it for 1 month then drain it and see what it looked like. Well, after feeling the difference in my shifting and how smooth it ran without any kinda leaks like I expected, I put it back in.
The real test was after wheeling it thru some trails with mild mud and a couple water crossing up to bottom of my doors. I drained it the next day and i was pleasantly surprised to see how well it looked.
I give you m word that while I'm on this forum I will do my very best not to ententionally give advise on matters I wouldn't put my own jeep thru..
I don't give advise based on hear say. I do research most of the day with my free time.
I'm sorda anal about hearing someone having issues I haven't experienced in my jeep or any of my vehicles for that matter and automatically go into search and learn mode..lol
Hope this gives all who reads this some insight as to the type of person I am..
I will gladly admit when I have made a mistake and find out myself or has been shown the error of my thinking and advice..
08-25-2010 05:53 PM
Wrangler Haven No one's bashing anybody here. We're just having a discussion. If you choose to run motor oil in a gearbox, that's your God given right. It's your rig and you can do whatever you want. It'll probably be fine and may even shift smoother. Keep in mind though that they may have superceded that part number just to cut cost.
These Transmissions all came with 75W-90, Grade GL-5 from the factory. It works. Why take a chance on something else?
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