911 Turbo Cabriolet F6-3299cc 3.3L SOHC Turbo (1987)
This fluid will turn dark in color after only a short time in use. This color change is normal and not an indication of contamination.
Below is a list of automatic transmission fluids presently approved by Porsche.
Amalie
Dexron II
D-21 594
Castrol
Dexron II
Mercon D21 981
Citgo
Dexron II
Multipurpose ATF D-21 571
Exxon
Dexron II
D-21 422
Kendall
Dexron II
D-21 574
Pennzoil
Dexron II
D-21 717
Quaker State
Dexron II
D-21 272, D-21 547
Unocal
Dexron II
Multipurpose ATF D-22 093
Valvoline
Dexron II
D-21 270