What is the best atf to use for the 3.0l s-type?
Please post a MY and/or the gearbox you have in your car!!
It has a 5 speed shiftable automatic transmission
Bob, its a 2001, as per his avatar;
Rogier you can add a country flag to your avatar which will help when asking area specific questions.
If it is the Ford 5R55N trans, the fluid is Mercon V and you can get it at any auto parts store in your choice of brands.