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RB25 Neo transmission break in

NickER34
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NickER34 Apprentice

NickER34

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Anybody have any recommendations of gear oil to use for break in period? I heard of people using Redline MT-90 but curious if people have any other opinions. The transmission is brand new from Nissan.

 

Cheers.

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https://www.sau.com.au/forums/topic/483528-rb25-neo-transmission-break-in/
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GoHashiriya Community Regular

GoHashiriya

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On 4/8/2022 at 3:15 PM, joshuaho96 said:

Wasn't there a guy that mentioned having issues with running synthetic gear oil during the break-in period?

Maybe me. Transmission started whining after 3k kms at a track day.

I used the factory-filled stuff for run-in, then changed to fully synthetic Syntrans "GL4+" 75W-90 (TAF-X) at about 800kms. When my new box comes I plan to just use the Nissan GL4 75W-85 consistently. 

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BK Grand Master

BK

Posted
Posted
On 08/04/2022 at 6:17 PM, GoHashiriya said:

Maybe me. Transmission started whining after 3k kms at a track day.

I used the factory-filled stuff for run-in, then changed to fully synthetic Syntrans "GL4+" 75W-90 (TAF-X) at about 800kms. When my new box comes I plan to just use the Nissan GL4 75W-85 consistently. 

That's because you can't get the good one in Japan, being Syntrans 75w-85 GL-4.

To be honest there's nothing wrong with vmx full time, just change it more regularly. One of the Rs we're just sticking with that - VMX-M gl-4 at $50 per 4 litres.

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