The API has over 27,000 products licensed globally and analyzes over 1,000 samples annually to assure compliance. Recent results found that 46% of these samples had issues ranging from minor discrepancies to more serious viscosity and NOACK inconsistencies. Some 15% of the samples had "questionable additives" indicating a divergence from the original chemical fingerprints established during licensing.
API finds almost half of tested oils have issues
API finds almost half of tested oils have issues