Gear Oil and Transmission fluid, Whats the difference?

[Amp042]

I have a serious question. As I am rather new to this, I was wondering if Gear oil and Transmission fluid are the same thing? From the research I've done, they go in the same place, so would it matter if i used one or the other say on a '01 Celia GT-S 6 speed manual. I am very confused on this topic.

[DOJAGUY]

gear oil is usually for standard transmission and transmission fluid for auto

[Amp042]

Well alright. So say I have a '01 Celica GT-S I heard Redline MT-90 is good. I was wondering which royal purple gear oild would be compatible for the manual trans?

[5150_Leadfoot]

I'm currently running Royal Purple 75w-90 gear oil.

[brianv3ntura]

Originally Posted by 5150_Leadfoot

I'm currently running Royal Purple 75w-90 gear oil.

royal purple is bad for our celica's m/t

[Amp042]

Originally Posted by brianv3ntura

royal purple is bad for our celica's m/t

I've looked around more and have seen a few people say royal purple was a good oil specifically the 75w90 mentioned above . This is where i get confused. some people give the okay and others say No. I'll look around for more info

[GSBoek]

Use Redline Lighweight Shockproof gear oil. Skip the Royal Purple for the manual transmission on our cars.

[GLERINK]

Royal purple and Mobil 1 eats thru our synchros from what I read, I know when I was using Mobil 1 my gears started grinding every now and then, when I switched to redline the grind was gone

[radiod]

You have to be careful with the version of Royal Purple gear oil you get. They put a limited slip additive in some of them and that will wreak havoc in a manual transmission.

[Amp042]

okay, thanks for your input.


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