Tranny Fluid

[Viperoni]

Originally Posted by thebarber

redline mt-90 in mine...

This, because it's GL-4 spec'd, which is what my Echo's tranny needs.


GL-5 will not be friendly to your tranny if you need GL-4, check your manual.

[Viperoni]

Originally Posted by Viperoni

This, because it's GL-4 spec'd, which is what my Echo's tranny needs.


GL-5 will not be friendly to your tranny if you need GL-4, check your manual.

I should clarify; any fluid that is both GL-4 and GL-5 compatible isn't the best choice, get something that is ONLY GL-4 compatible (if that's what the Yaris tranny needs).

The fluids that are GL-4/GL-5 compatible don't do as good a job as ones that are strictly GL-4 compatible.