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Read our primer articles on Grease Guns and Oil Sight Glasses.

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food grade are mostly mineral based (a food grade mineral oil base oil is refined to a higher degree and cleanliness) also some synthetics are used so they are close to your mineral oil you know.

The next difference is that they are limited on type and amount of "additives" they can use both for clear light color and non toxic means NO Zn based AW hydraulic oils.

Viscositys are same and food grade is avalible in most types like hydrualic, air line, gear etc.

bruce
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attend Reliable Plant 2024
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