Radiator stop leak

[Sciggity]

Can i add radiator stop leak to the reservoir on my 2005 Ford Explorer 4.0 V6?

 

[RangerX]

Can you? Of course! Should you? Maybe as an emergency fix.

 

[swshawaii]

IMO, the ultimate "Band-Aid" fix. Strange thing is Ford endorses the use of it in many TSB's and owners manuals. :scratch:

Coolant Discoloration:

The current Motorcraft Cooling System Stop Leak Pellets, service part number VC-6, used in both production and service, cause the yellow-colored Motorcraft Premium Gold Engine Coolant to change color ranging from a light golden brown to dark brown, depending upon the amount of pellet material in the coolant reservoir. This discoloration does not adversely affect the coolant or the vehicle’s cooling system components. No repairs are required for this condition. To avoid confusion with regard to coolant contamination, a new formulation of stop leak pellets will be implemented in production and service in the near future.

http://www.revbase.com/BBBMotor/TSb/DownloadPdf?id=116643

http://www.bbbind.com/free_tsb.html