I use Motorcraft Type F in my C6. Here the link to there web site. You can get it at amazon or your local Ford dealer and some auto parts stores carry it.
http://www.motorcraft.com/products/items?userguide=1249079394648&v=101
Motorcraft® Type F Automatic Transmission Fluid (ATF) and Power Steering Fluid
Usage
● High-static friction fluid developed for Ford automatic transmissions manufactured during the 1970s and earlier
● Special frictional properties help ensure proper shifting in Ford transmissions that require a fluid meeting ESW-M2C33-F
● Also recommended for power steering systems in a wide variety of 1995 or older model-year Ford vehicles requiring Type F fluid
● Not for use in newer transmissions requiring MERCON® LV, MERCON® V or MERCON® SP
Features
● Dual-use fluid for older Ford, Lincoln and Mercury vehicles
● Resists foaming and helps protect against rust, corrosion, wear and deposits
● Low viscosity also makes it suitable as a hydrostatic drive fluid for many farm implements and certain industrial equipment applications
● Recommended by Ford Motor Company
● Available in cases of 12 one-quart bottles
View Oil and Lubricants Video
Automatic Transmission Fluid Chart
