It Still Runs is the go-to destination for all things cars. From motors to radiators and everything in between, we've got you covered.


How to Choose the Oil and Fluids for a Mercury Cougar

by Kyle McBride

The owner's manual for the 2002 Mercury Cougar called for SAE 5W-20 premium-grade synthetic blend engine oil, a change over the previously recommended SAE 5W-30. Starting in January of 2002, however, Ford announced that all Mercury Cougars from 1993 through 2002 should use SAE 5W-20 engine oil with no substitutions for extreme cold climates. Pick a premium-grade synthetic blend with the API-certification stamp on the bottle.

Transmission, Transaxle and Power Steering

If your Cougar has a manual transmission, use a full-synthetic manual transmission fluid. For the automatic transmission, transaxle and powering steering, use Mercon-V ATF fluid. The owner's manual called for Mercon fluid and warned against substituting or mixing with Mercon-V, however, in service bulletins released in 2006 and 2007 -- TSB 06-14-4 and TSB 07-1-7, respectively -- Ford announced that all applications calling for Mercon fluid should use Mercon-V fluid.

Other Fluids

Replace the coolant in your Cougar with the same color coolant it came with. Motorcraft makes green, yellow and orange coolants. Your 2002 Cougar takes Motorcraft Specialty Orange [Engine Coolant]( VC-2 or another extended-life coolant that meets specification WSS-M97B44-P. Don't mix coolant colors. The hydraulic brake system takes DOT3 fluid, but you can use DOT4 fluid in a pinch.

About the Author

This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Runs, contact us.

More Articles

Photo Credits

  • Scott Olson/Getty Images News/Getty Images