Transmission clunky when getting in 3rd gear

[Bluevitz-rs]

GL4 is what you want. I've experienced the same issues with GL5 fluids. I've used Amsoil, Castrol and cheap Motomaster 75-90 synthetic fluids. I'm now using Royal Purple 75-90 GL4 full synthetic. It fixed all rough shifting problems I've had over the year of using other fluids.

[frankronne]

Originally Posted by Bluevitz-rs

GL4 is what you want. I've experienced the same issues with GL5 fluids. I've used Amsoil, Castrol and cheap Motomaster 75-90 synthetic fluids. I'm now using Royal Purple 75-90 GL4 full synthetic. It fixed all rough shifting problems I've had over the year of using other fluids.

Redline Mt-90 is a 75W90 GL4 fluid. I've heard nothing but good reviews about it and now it gives me problems haha. I will probably try getting back to mineral fluid but I dont want to waste 50$ worth of Mt-90...

[CoryM]

Originally Posted by frankronne

Redline Mt-90 is a 75W90 GL4 fluid. I've heard nothing but good reviews about it and now it hiver me problems haha. I will probably try getting back to mineral fluid but I dont want to waste 50$ worth of Mt-90...

Yeah I know. I did the same thing after people saying were happy with it on this forum and that it improved the shifts. The thing is, I should know better. I'd already run in to the same issue in my old Camaro.

After going back to regular oil, shifts were as good as before. Syncros are happy and working well.

Cheers.