I just got three quarts of Manual tranny fluid from the dealership when I picked up my axle seals. What is it? Most people just say put 10w30 in the tranny.

Also, I have some Marvel's Mystery Oil... Anyone who's had an RX-7 worships this ****. It's an oil stabalizer and fuel additive... It's safe to use in gearbox oils. Has anyone ever used this in a Honda gearbox? With Honda Manual Tranny fluid?

 

i have 10w30 in my tranny.

 

i had 10 30 in my gearbox thinking it was no different from honda mtf, but after 10k, it started grinding and hard to get into gear so i switched to redline mtl. works great.