MAG 1 Power Steering Fluid is a specially blended formula that is suitable for select General Motors, Ford and Chrysler power steering systems where Dexron III or similar fluid is recommended. Meets requirements for Chrysler MS-5931, Ford ESW-M2C128-C or -D, and GM 9985010. Helps prevent foaming, rust and corrosion Recommended for complete fluid refill or top off.