[VR4god]

This is what I'm using and it's going in my never seen oil ever direct from Getrag AWD trans, I work for a huge oil company. Only for my peace of mind, after 500 miles we will pull a sample for metal wear plus since new trans and transfer case we are going to replace the oil (refering to it as a break in fluid with new). Full synthetic, not conventional like Pennzoil synchromesh is. Technology with better qualities. 20+ years later. Redline ruined 2 synchros and my reverse. Sorry plus if the trans is brand new Valvoline will give a 30,000-mile warranty on this item#. Mine is brand new!

http://content.valvoline.com/pdf/vps_manual_transmission_fluid.pdf

Product Information
A PRODUCT OF THE VALVOLINE COMPANY A DIVISION OF ASHLAND INC.
VALVOLINE PROFESSIONAL SERIES MANUAL TRANSMISSION FLUID
For a Broad Range of Syncromesh Applications
VPS Manual Transmission Fluid is a superior performance fully synthetic lubricant formulated to excel in the extreme
demands of a broad range of passenger car manual transmission gearbox applications. It is expertly balanced with a blend
of advanced multifunctional additive technology, a shear resistant viscosity modifier and premium synthetic base stocks to
provide optimal performance. It is designed to give excellent load carrying capacity, extreme pressure properties, anti-foam
performance, corrosion protection and thermal stability protection, outstanding cold temperature properties, as well as
provide oxidation stability and superior flow properties without altering synchronizer performance characteristics.
This product is recommended for Syncromesh applications in a broad range of manual transmission gearboxes where
synchronizer performance is vital. It is fully compatible with components in modern manual transmissions including yellow
metals like bronze, copper and brass and provides enhanced protection over a wide temperature range. VPS Manual
Transmission Fluid is recommended for use in manual transmissions, transaxles and transfer cases where a GL-4 gear oil
is required and/or specified as a service fill recommendation. It is suitable for use in the following manual transmissions and
manual transaxles: Ford specification M2C200C, GM: Part Number 12345349, 12345577, 1052931, Chrysler: Part Number
4874459, 4874464, 4874465, Honda/Acura, Toyota/Lexus, Mazda, Nissan, Suzuki, Hyundai, and for top up applications in
GM Part Number 12377916.
The VPS Manual Transmission Fluid Advantage
• Wide Temperature Range: Enhanced performance in both low and high temperature operating conditions
• Flow Properties: Provides excellent low temperature protection
• Thermal Protection: Provides superior thermal and oxidation stability
• Wear Protection: Excellent wear protection under high loads and extreme pressure
• Corrosion Protection: Protects parts from rust and corrosion; compatible with copper, bronze, brass
• Yellow Metal: Compatible with yellow metals
• Synchronizers: Outstanding performance of synchronizers
• Wide range of applications: Recommended for use in a wide range of applications
Test VPS Manual Transmission Fluid
Vis @ 100°C (cSt) 14.5
Vis @ 40°C (cSt) 73
Viscosity Index 210
Spec Gravity @ 60°F 0.862
Density (lbs/gal) 7.22
Flash COC (°C) 220
Pour Point (°C) , max -42 (-44 F)
Phosphorus, wt.% 0.14
Sulfur, wt.%
Zinc, wt%
0.39
0.11
Effective Date: Replaces: Author's Initials: Pages Code
4/10/13 7/18/12 EMF

 

[Hard AttacK]

Where is amsoil in all of this?

 

[RealMcCoy]

Where is amsoil in all of this?

I don't have a good local source I'm familiar with, and redline is readily available to be delivered to my door... I don't like spending a bunch of time chasing down supplies when I should be turning wrenches, so that makes a big difference in my decisions.

If more readily available and cost effective, I wouldn't hesitate to use this stuff: https://www.amsoil.com/shop/by-prod...t/transmission-fluid/manual/manual-transmission-and-transaxle-gear-lube-75w-90/

 

[Hard AttacK]

Is it possible to buy diaqueen in single quarts? I see a bunch of the mitsu mtf advertised as diaqueen and that's annoying!

 

[Chris @ Rvenge Performance]

Is it possible to buy diaqueen in single quarts? I see a bunch of the mitsu mtf advertised as diaqueen and that's annoying!

the mitsu mtf is what we are supposed to use, not the diaqueen.

 

[donniekak]

All of the "synchro" oils are garbage. People with awd getrags may not notice because they are built like tanks. But, fill a 600+ hp dsm with any of that stuff and see how long the transmission lasts before catastrophic failure.

My talon has valvoline 85w-140 in it, and it shifts great after it warms up.

 

[Hard AttacK]

the mitsu mtf is what we are supposed to use, not the diaqueen.

That's actually what I ordered. I had amsoil in my last trans, but this stuff is 11$ a quart from cherry hill and amsoil is around 16

 

[VR4god]

The stock Mitsubishi oil is nothing less than 75w90 gear oil coming off the Japanese website plus I ran a viscosity on it in our lab same as a 5 W 30 motor oil the synthetics have much better pour cold temperature points than conventional technology from 25 years to now oil has drastically changed when it comes to the quality and performance .
My mind has been set what I'm using and luckily I have the capability to pull samples at the first 500 to 1000 miles check for any metalware at any time by our maintenance department. My transmission is brand new I've owned my car since 1996 always used Pennz Synchro mesh, developed almost 30 years ago. I tried red line and that's what's in the Old tranny. Nope I'm putting a synthetic comprable synchromesh you can all use what you want your car do what you want the only difference between all of us and me is I have 30 years experience blending oil Packaging oil formulating oil blending oil testing oils now I'm pretty much into chemicals such as for concrete . I have no problem with cold shift issues never have with conventional synchromesh. Sell synthetic synchromesh should give me that much more cold shift quality. I'm not reporting to this site until after I have my metal wear numbers and results right now I'm having an issue with the fucking dealer they can't even get my car timing belt and transmission installed and it's been almost 6 weeks I'm getting pissed bad about ready to grab my car out of that shop and take it elsewhere.

 

[i3igpete]

I ran a viscosity on it in our lab

Since you're a rheologist, do you have any test data on shear-thinning or piezo-viscous properties of the factory fill? For counterformal contacts like helical gears, those will have huge effects.

 

[speedy25]

Sorry but my experience mirrors Donnies. The Pennzoil synchromesh was a fail. When I couldnt go from gear to gear and thought my trans was finally done for I put 5w30 Mobil 1. No more grinds and shifts like butter. It took about 500 miles to cure the damage the synchromesh did.

However a synthetic "synchromesh" does sound appealing. I look forward to some data.

The last time I had a Brookfield viscometer to use was a few jobs ago so I'll have to trust vr4god's.

 

[VR4god]

This is what I'm using and it's going in my never seen oil ever direct from Getrag AWD trans, I work for a huge oil company. Only for my peace of mind, after 500 miles we will pull a sample for metal wear plus since new trans and transfer case we are going to replace the oil (refering to it as a break in fluid with new). Full synthetic, not conventional like Pennzoil synchromesh is. Technology with better qualities. 20+ years later. Redline ruined 2 synchros and my reverse. Sorry plus if the trans is brand new Valvoline will give a 30,000-mile warranty on this item#. Mine is brand new!

http://content.valvoline.com/pdf/vps_manual_transmission_fluid.pdf

Product Information
A PRODUCT OF THE VALVOLINE COMPANY A DIVISION OF ASHLAND INC.
VALVOLINE PROFESSIONAL SERIES MANUAL TRANSMISSION FLUID
For a Broad Range of Syncromesh Applications
VPS Manual Transmission Fluid is a superior performance fully synthetic lubricant formulated to excel in the extreme
demands of a broad range of passenger car manual transmission gearbox applications. It is expertly balanced with a blend
of advanced multifunctional additive technology, a shear resistant viscosity modifier and premium synthetic base stocks to
provide optimal performance. It is designed to give excellent load carrying capacity, extreme pressure properties, anti-foam
performance, corrosion protection and thermal stability protection, outstanding cold temperature properties, as well as
provide oxidation stability and superior flow properties without altering synchronizer performance characteristics.
This product is recommended for Syncromesh applications in a broad range of manual transmission gearboxes where
synchronizer performance is vital. It is fully compatible with components in modern manual transmissions including yellow
metals like bronze, copper and brass and provides enhanced protection over a wide temperature range. VPS Manual
Transmission Fluid is recommended for use in manual transmissions, transaxles and transfer cases where a GL-4 gear oil
is required and/or specified as a service fill recommendation. It is suitable for use in the following manual transmissions and
manual transaxles: Ford specification M2C200C, GM: Part Number 12345349, 12345577, 1052931, Chrysler: Part Number
4874459, 4874464, 4874465, Honda/Acura, Toyota/Lexus, Mazda, Nissan, Suzuki, Hyundai, and for top up applications in
GM Part Number 12377916.
The VPS Manual Transmission Fluid Advantage
• Wide Temperature Range: Enhanced performance in both low and high temperature operating conditions
• Flow Properties: Provides excellent low temperature protection
• Thermal Protection: Provides superior thermal and oxidation stability
• Wear Protection: Excellent wear protection under high loads and extreme pressure
• Corrosion Protection: Protects parts from rust and corrosion; compatible with copper, bronze, brass
• Yellow Metal: Compatible with yellow metals
• Synchronizers: Outstanding performance of synchronizers
• Wide range of applications: Recommended for use in a wide range of applications
Test VPS Manual Transmission Fluid
Vis @ 100°C (cSt) 14.5
Vis @ 40°C (cSt) 73
Viscosity Index 210
Spec Gravity @ 60°F 0.862
Density (lbs/gal) 7.22
Flash COC (°C) 220
Pour Point (°C) , max -42 (-44 F)
Phosphorus, wt.% 0.14
Sulfur, wt.%
Zinc, wt%
0.39
0.11
Effective Date: Replaces: Author's Initials: Pages Code
4/10/13 7/18/12 EMF

\
I HAVE DECIDED TO USE MITSUBISHI GEAR OIL DIAQUEEN IN MY BRAND NEW TRANNY 25 Spline, 5 speed! RED LINE SHOCKPROOF (Heavy) IN BRAND NEW TRANSFER CASE!
I have based my decision on the following\
1- Its the oil Jacks say to use.
2- Not 1 complaint by anyone who uses it through all the posts on here.
3- Warranty, its being installed right now down at Mitsubishi Service.
4- 1 less thing to worry about.

 

[Chris @ Rvenge Performance]

I wish people would not call any mitsubishi transmission fluid "diaqueen". What you want (and are probably getting from the dealer) is mitsubishi mtf 75w85.

OEM Mitsubishi Trans Fluid ? Jacks Transmissions

Part # MZ320197 if you want to buy from dealers.

Lots of links and people call it diaqueen, but that is a different part #.

 

[VR4god]

I don't have the name exactly right in front of me but they have the exact same hands that Jax is selling right there and you're right it's basic oil butt I'm listening to the pros and I am a Oil Pro 30 years oil and chemical operations manager formulator blender chemist I just couldn't remember the name. But it's the same exact oil that Jax has on their website in gallon cans. I was going to use Valvoline synchromesh but I've asked 5 professionals including jacks and 4 others. They all agree with my decision

 

[VR4god]

Sorry for any typos my voice texted everything the exact same cans exact same brand name I've had my car since 96 I've gone through three transmissions this is the brand new one I got it on the group buy about five years back from ISP Motorsports if I recall

 

[VR4god]

I'm now with the service manager at the dealer right now and that is the part number they also are telling me to use for the oil.

 

[ChargerX3]

Glad you came around. You won't regret it. Wouldn't hurt to pick up a couple quarts or gallon to have on hand whike you are there. Last time they just filled up my gallon jug at the dealership.

 

[Chris @ Rvenge Performance]

I wanted to add to this thread, I am now running royal purple synchromax. It is a replacement for transmissions that take atf or motor oil. It is slightly thinner than redline mtl and pennzoil synchromesh. 7.7cst at 100c vs 9 for synchromesh and 10.2 for redline mtl.

It is one of the most popular fluids for the Getrag/Toyota v160 trans found in the mark IV supra.

Given they run exactly the same synchro composition (1st and 2nd inner rings are actually the exact same part#) and similar bearings I thought this would be a great fluid to try.

I have run almost every popular fluid out there. Here I will rank them in order of what shifts best starting first.

1)Royal Purple Synchromax
2)Pennzoil Synchromesh
3)Redline MTL
4)Mitsubishi MTF 75w85
5)Random 90weight, like coastal/valvoline/royal purple max gear (too thick for cold shifting, nice when hot)

I have rebuilt 2 different 6 speeds and was never happy with how they shifted, especially when cold for the first few miles, even in the summer. I replaced literally every component of 2nd gear (hub and slider, 3 piece oem synchro, 2nd gear itself, billet shift forks) and it still felt notchy and slow to shift until the trans was very hot.

I replaced the shift cables with brand new oem ones, as precisely adjusted as I could possible do. I went through several clutches and now have a RPS streetmax with a stock flywheel. I have new oem master and slave cylinder, and stm one piece braided clutch line, bled perfectly.

I am 100% sure the clutch doesn't drag. I put the car in the air and revved to the rev limiter and the wheels do not even wiggle. Obviously the car doesn't try to creep.

I had jackstransmissions rebuild my 6 speed I already rebuilt and he couldn't find anything wrong with it. I ran the recommended mitsu fluid for 2 changes.

The trans still shifted stiff (4th was VERY stiff) until the trans was warmed for at least 15 minutes. After that it was "OK". Still not what I would expect. Didn't shift as good as 5 speeds I had 1/3 the money in. Barely shifted as good as some random 5 speed I bought for $300 once.

So, I tried the Synchromax and the difference is astounding. By far best shifting fluid I have tried. It really makes the mitsu fluid seem like you put coastal 90 weight in the trans, makes it look like complete crap.

From the time you leave the driveway it shifts smoothly and only gets better with a few minutes of driving. You could shift with one finger, it is like butter.

I need to put more miles on it for a really good review, but I am very impressed with it, and honestly very unimpressed with the mitsu fluid. I don't know why it gets such rave reviews, maybe my car is "special".

This is such a hot topic because a good shifting transmission really makes the car, a bad one makes you want to leave it in the garage.

 

[gawdzinner]

good info Forest.

Is this the exact fluid you rated #1? Synchromax Manual Transmission Fluid for Added Performance | Royal Purple

How much does a 5 speed take again? 1.5L?

 

[Chris @ Rvenge Performance]

good info Forest.

Is this the exact fluid you rated #1? Synchromax Manual Transmission Fluid for Added Performance | Royal Purple

How much does a 5 speed take again? 1.5L?

Yes, that is it, it takes 2.5 quarts.

 

[dfz3000gt]

Forest.
Your list shows you prefer RP over a Redline similar to MT85.
Would you recommend draining Redline that has about 1000 miles on it and adding RP instead to a 6spd with shifting issues?

Did you notice that much of a difference?



Thanks