Originally Posted By: ET16
Shifting is actually smoother with the Maxlife. Engine idles better, too. I suspect that Maxlife is slightly thinner than the original fluid.
That is not necessarily a good thing, it could mean that
there is more "slip" before engagement between gears and that means
INCREASED wear.
In general you want the quickest engagement between gears with the least slip possible without jarring your teeth out or putting more wear on other related components. So a firm shift is better for longer transmission life. You can use MaxLife but the life of your transmission might be reduced.
There is a reason why SAAB specified a dino based product.
The auto unit may have had changes to it specified by SAAB.
Which could have included the electronic TCU, mechanical,
seals, ect. If anything I would go with
Castrol Import Multi Vehicle ATF..at least that is a dino based product with friction modifiers that meet 3309 specs.