GL4, how about GL2 through GL5?

[John David Anderson]

>Is anyone using Amsoil synthetic 80W90 GL2 through GL5 in their tranny?
> If so, how long have you had it in and any comments on shifting
>smoothness, etc?

>If GL5 can't be used, I don't see how this can meet GL4 and still be
>GL5 spec.

>For the record, no one around here carries Redline.

This is a long lamented and argued topic, my how they used to make
claims on the corrado list, and then even some would claim that Redline
GL4 MTL still killed their GTI box but the MT90 was safe, yada, yada,
yada.