FORD WSS-M97B56-A1

Description / Abstract: FORD WSS-M97B56-A1, 2019 Edition, April 1, 2019 - INHIBITOR, ENGINE HOT TEST FLUID ***TO BE USED WITH FORD WSS-M99P1111-A***

The material defined by this specification is an inhibitor concentrate containing corrosion inhibitors in an aqueous base at a ratio of around 18 -30% inhibitors in the as-received concentrate. The concentrated aqueous base inhibitor is used to make engine hot test fluid. Concentrated engine coolant can also be considered an inhibitor concentrate. Engine hot test fluids prepared by mixing the concentrated aqueous base inhibitor or concentrated engine coolant with water provide corrosion protection of all engine materials (iron, aluminum, copper and solder alloys).