MUXX Oil logo
Request service
Back to lubrication knowledge

QUALITY FRAMEWORK

API and EELQMS: Two Different Roles in Lubricant Trust

API provides product-level engine oil certification and licensing for selected products where applicable. EELQMS represents a brand and company-level lubricant quality management, labeling discipline and market monitoring framework.

API

Product-level engine oil certification

API is an international engine oil certification and licensing system applied to specific products that meet the relevant category requirements.

  • Review the exact API mark or performance category on the product label and data sheet.
  • Do not assume every MUXX product carries the same API status; confirm by individual product.

EELQMS

Brand-level quality management

EELQMS is positioned as a brand and company-level quality management, process supervision and market monitoring framework for lubricants.

  • It supports consistency, labeling discipline and traceable quality management.
  • It should not be described as a single product certification.

DUAL TRUST FRAMEWORK

Brand management plus product certification

MUXX communicates quality through a dual trust framework: EELQMS brand-level quality management and API product-level certification or licensing for selected engine oil products where applicable.

  • Brand level: quality management, process and market supervision.
  • Product level: certification or licensing evidence for selected engine oil products.

HOW TO READ CLAIMS

Check the right evidence

Before selecting oil, compare the vehicle manual, OEM requirements, product label, certifications and MUXX official data sheet.

  • Viscosity, performance category and certification are different types of information.
  • If unsure, ask MUXX AI to help organize the information before purchase or service.

OFFICIAL VERIFICATION

Check API and EELQMS information from official sources

Use official directories as verification tools. Search results should be interpreted product by product and should not be used as a blanket claim for every MUXX item.

API

API EOLCS Directory

Search active API licensees and licensed products by company, brand, SAE viscosity grade and API service category.

Open API official directory
EELQMS

SAIL / EELQMS Marketer LoC Registrations

Review lubricant marketers with registered Marketers' Letter of Conformance information on the SAIL Europe official list.

Open EELQMS official list
View product lines Let MUXX AI recommend