I found the same thing using the Amsoil.
The factory fill was better than the Mobil 1 gear oil I used. Then I put in the Amsoil and WOW, what a difference.
I'll prob go 100k on the Amsoil and I may try the Redline and report back.
It was interesting to see how the different brands of the same fluid/weight perform in such a simple transmission.
My 1986 Jetta received its FIRST and only transmission change @ 292k. It was still shifting perfectly when I changed it (felt bad for it) and I just put in some regular fluid.
It's still shifting fine around 350k...
Wish I knew what VW put in the transmission back then..
Bill
The factory fill was better than the Mobil 1 gear oil I used. Then I put in the Amsoil and WOW, what a difference.
I'll prob go 100k on the Amsoil and I may try the Redline and report back.
It was interesting to see how the different brands of the same fluid/weight perform in such a simple transmission.
My 1986 Jetta received its FIRST and only transmission change @ 292k. It was still shifting perfectly when I changed it (felt bad for it) and I just put in some regular fluid.
It's still shifting fine around 350k...
Wish I knew what VW put in the transmission back then..
Bill