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Discussion Starter · #1 ·
This stuff is phenominal.

Negatives:
-Expensive, but you should only need to put it in your car once.
-The performance of the fluid is consistant with Redline in that it takes the engine warming up (About 5 minutes) before it peaks

Positives:
-Shifting is like butter. Beyond belief.
-Best performing gear oil I have tried yet.

Summary, I have been using Valvoline Gear Oil for the first 2500 miles of my new engine. Shifting has been stiff and hard to get in gear sometimes, as if the syncros were made of concrete. I was hoping it wasn't the tranny. I mean it's been a year since I drove this car, so anything could have happened in that time. Well, I was changing my oil and adding Mobil 0W-30 (also great stuff) and decided to make the change in the gear oil. Wow. Day and night. I cannot believe the difference. I could not be happier. The TRD clutch and B&M shortshifter can now be utilized as I'm not affraid to put them to use anymore.

I haven't used Redline yet, but I'm sure the perfomance is very simular based on reviews I have read on this board. The reason why I chose Royal Purple is it is what we run in our race cars.


Sypnopsis (sp):
Valvoline Gear Oil 75/90- Dogsh!t, worse than Toyota fluid that comes stock
Toyota Gear Oil 75/90- Great for street use
Royal Purple 75/90- Gear Oil of the Gods
 

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Discussion Starter · #3 ·
Honestly, I don't think you really ever have to. Don't quote me on that, but the life of gear oil is pretty damn good.

I replaced my engine though, so I in turn replaced the fluid. Because of the poor perfomance of the valvoline oil, I then replaced it again.
 

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Discussion Starter · #31 ·
nyoneway said:


Right, but Redline state that their GL5 75w90 is twice more corrosive than their GL4 fluid for normal tranny without LSD.

Royal Purple's fluid that's compitable with LSD contains less sulfur than the Redline counterpart. That's why I will be switching to Royal Purple.
Hmmm. Didn't know that about Redline. I think Redline is still a great product, but I am really happy with this RP, and I think you will be too. I don't know how much, if any, difference you will notice since you are going from one great product to another.
 
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