From CIMCOOL

Metalworking fluids are designed to make modern machine tools perform more productively, accurately, and efficiently. A review of these guidelines will enable you to design machine tools for optimum compatibility and to make maximum use of the properties of these fluids.

Metalworking fluids contain little or no oil and therefore cannot supplant the function of a way lubricant.
DO - Use positive lubrication.
DO - Protect way surfaces from forceful metalworking fluid flow which can displace way lubricant.
DO - Recommend and specify "water resistant" way lubricants.
DO - Use high quality wiper materials compatible with metalworking fluids (see Materials of Construction - Elastomers).

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