Amsoil manual gerabox oil issue?

[IllusionX]

Originally Posted by tmontague

Was there a big difference between the RP and the Amsoil? I can easily purchase RP from my local CT but if Amsoil is better than I may try and source it.

FWIW, I'm currently running Redline 75w90 GL-5, it shifts smooth but still grinds the odd time in reverse.

It's normal to grind shifting into reverse.

I did not have the correct RP oil, so things were not better than Castrol. I had the RP synchromesh gear oil, which wasn't really meant for our transmission.

I used to grind 3,4 and 5th gear up shifts when reving high. As soon as I put Amsoil in, no more. Just going from 3rd to 5th but now that we talk about it, I haven't heard it grind doing it anymore.

I still have some random grinding going into 1st from a rolling stop, but it's rare now.

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