Ok, so I've read several threads on changing the transmission fluid. I've decided to go with Redline Oil, and all of the threads suggest mixing the MTL (70W80) and the MT-90 (75W90) oils together, to yield a weight closer to the 75W85 weight our transmissions use.

My question is this... is it really necessary to mix the two oils together? I'm asking because I figure that the MT-90 fluid, which is 75W90 should be good enough by itself.

Thanks.

 

NVM, I found the answer I was looking for...

 

How bout posting the answer so when people search this thread isn't a complete waste of time.

 

+1 on posting the answer.

 

Sorry, guys.

I called Redline. They stongly suggest mixing the MTL and the MT-90 together. It won't EXACTLY blend to the 75W85 that the transmission requires, but it's very close. They said that I can get away with using the MT-90 by itself, but it's better to be as close to the required weight, as possible.

That being said, I'm gonna blend the MTL and MT-90 oils together.

 

Sorry I don't have my manual anymore but how many quarts does our transmission take? Also did you mix 50/50?

~Robert

 

3 1/8 qts I like Royal Purple straight 75 weight, meets or exceeds OEM standards, says so on the bottles. About $10.00 a qt.

 

about 3 1/8 qts, as mentioned. I haven't put it in yet, but I will be mixing it 50/50. Out of town on family emergency right now, so it's on my to-do list when I get home.

 

Thanks!!!

~Robert

 

ive ran royal purple, motul, and oem nissan fluid...the oem nissan is synthetic and held up just as well as motul...royal purple sucks

 

Why dose Royal Purple Suck?

I went to three diff. places looking for Redline oil, No one carrys it, Pep Boys- No, Orileys- No, Auto Zone- No!

Who has this on Stock, I have a day off tomarrow and i want to do it already... I really dont want to order it! --Help

 

AhhHaa!
Found it, Check Redline web site and do a search under the "Dealers" Section....Just an FYI

 

I considered Royal Purple, but after hearing everyone say it sucks, I chose Redline.

I just ordered direct from Redline. Didn't mess with dealers...

 

Just don't let em tell you the world is flat, you might believe em again..

 

WHAT!! The world... ISN'T... flat?



j/k..



I couldn't find any concrete evidence that RP was bad, but assumed there was some truth to it, if several people said it.

 

amsoil reformulated their tranny fluid and you can run it straight in the 350z, no mixing.

http://www.amsoil.com/StoreFront/mtg.aspx



Performance Features

• Reduces friction, heat and wear
• Superior high temperature stability
• Resists heat, oxidation, acid build-up and varnish
• Lasts two times longer than conventional petroleum oils
• Improves cold weather shifting

Applications
Recommended for synchronized manual transmissions and transaxles that require 75W-85, 75W-90 or 80W-90 viscosities and any of the following performance specifications: API GL-4 and MT-1, ZF TE-ML 02B, 16A, 17A and 19A, Chrysler MS-9070, MAN 341 ML. Recommended for use in NV 4500 transmissions, and replaces GM part #12346190 and Chrysler part #4874459.

Meets GL-4 performance specifications required by some models of Acura, Hyundai, Infiniti, Kia, Land Rover, Lexus, Mazda, Mitsubishi, Nissan, Subaru, Suzuki, Toyota, Volkswagen, Hino Mitsubishi-Fuso, and Zetor. Ideal for muscle car transmissions such as Muncie, Borg Warner, Saginaw, Ford Toploader, Dearborn and New Process. Also recommended for Gear Vendors Gear Splitters.

 

One size fits all? They didn't reformulate it, the bottle still says 75W-90. You sound like an AMSOIL dealer.

 

Even if he is, there are plenty of people that speak highly of AMSOIL so it really doesn't make a difference.

 

You don't see any distinction between the honest feedback of an end user and the biased sales pitch of a vendor? Just trying to balance the equation dude, chill out.

 

Redline MT90 is the best you can run i dynoed my car and got 3.14 HP to the wheels using MT90 in the trans and 75-90 in the diff so i personaly like redline