Author: Khashayar Hajiahmad

5 Reasons I Chose to Recertify My ‘VPR’ Credential

Posted by Khashayar Hajiahmad | Nov 11, 2025 | Articles & Thoughts | 7 |

Guest author Khashayar Hajiahmad shares the thought process that took him on a deep dive into the evolving science of varnish control, leading him to identify five practical reasons that justify renewal of his VPR varnish badge for another three years.

How I Confirmed My Varnish Knowledge with VIM and VPR Certification Badges

Posted by Khashayar Hajiahmad | Nov 16, 2022 | Articles & Thoughts | 3 |

Guest author Khashayar Hajiahmad describes his varnish badge journey: “I started dealing with varnish issues when I was a lubrication management consultant in a very large oil and gas facility in Oman. Dealing with any lubricant-related issues, you should first be able to…”