Send the following on WhatsApp
Continue to ChatQuadruple effect: How exactly does ZDDP work? https://learnoilanalysis.com/lube-oil-test-analysis-lab-lubrication-reliability-maintenance/quadruple-effect-how-exactly-does-zddp-work/
Quadruple effect: How exactly does ZDDP work? https://learnoilanalysis.com/lube-oil-test-analysis-lab-lubrication-reliability-maintenance/quadruple-effect-how-exactly-does-zddp-work/