THE PETROLEUM QUALITY INSTITUTE OF AMERICA​

The independent resource for information and insights on the quality and integrity of lubricants in the marketplace

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THE PETROLEUM QUALITY INSTITUTE OF AMERICA​

The independent resource for information and insights on the quality and integrity of lubricants in the marketplace

Menu

Wolf’s Head, SMB, Kendall, and XADO

Samples of the following four brands are the most recent examined by PQIA and the tests conducted on the samples meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories. The test results for one sample (SMB), however, show a product with a phosphorus level 5% higher than the standard required to meet the API Service Category of “SN” listed on the product label.

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Wolf’s HeadSMBKendallXADO

PASSENGER CAR MOTOR OIL

PETROLEUM QUALITY INSTITUTE OF AMERICA SAMPLE SUMMARY/PASSENGER CAR MOTOR OIL Passenger car motor oil is the lifeblood of your engine. In addition to lubricating moving

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