Oil and Lubricants

A key component to oils and lubricants to maintain their lasting performance and shelf life is the added oxidation inhibitor, antioxidant. The extent of these oils are protected by antioxidants are normally tested by AOCS, ASTM and other standard methods. The chemical changes in oils and lubricants as a result of oxidation results in increased viscosity (thickening) and change of color.

Oil samples treated with a current commercial standard antioxidant and a Polnox antioxidant are heated continuously at 190 °C for 30 hours. The color and viscosity of these two samples are dramatically influenced by the extent of antioxidants protecting these two oils. The color and flow of the oil sample treated with Polnox sample demonstrate its superior viscosity and antioxidant properties. Click on the movie icon to view the high performance of Polnox's antioxidant.

Oxidation Stability of Lubricant Oil

Polnpx PNX antioxidants show excellent performance in lubricant oils. The performance of Group II oil with no antioxidants is compared with oil containing 1% of BHT and 1% of Polnox AO. The oxidation induction time measured by DSC method is 13.2 x times better than BHT, a current commercial industry standard.