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

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Motor Oil

Results for a Fourth Group of 15W-40s are in

The results are in on four more heavy duty diesel engine oils, and the tests conducted on the samples meet the SAE J300 specifications for

Mining the Minds in the Lubricants Industry

The Petroleum Quality Institute of America receives emails and phone calls nearly every day from consumers, marketers, blenders, and a number of others with questions about lubricant quality, performance, and other lubricant related issues on their minds. Whereas PQIA makes every effort to answer these questions, we take a pass on some because they are… Read More ›

Results in on More CK-4 HDEOs, Mining the Minds

Results for a Third Group of CK-4s are in In addition to PQIA’s ongoing effort to provide consumers with information about the quality of lubricants in the market, we present our readers with information and insights about trends and changes in the industry that can sometimes be seen in the data from the samples PQIA… Read More ›

Results for a Second Group of CK-4 HDEO – No Issues

Results for a Second Group of CK-4s are in In addition to PQIA’s ongoing effort to provide consumers with information about the quality of lubricants in the market, we present our readers with information and insights about trends and changes in the industry that can sometimes be seen in the data from the samples PQIA… Read More ›

PQIA reports on seven samples of motor oil, and two antifreeze/coolants

Motor Oil Samples The Petroleum Quality Institute of America reports on three brands of SAE 5W-20, two brands of SAE 5W-30, and two brands of SAE 10W-30 motor oil recently tested. The results of the tests conducted on samples of the products shown below meet the SAE J300 specifications for the SAE viscosity grade listed… Read More ›

Shell Claims a Sample of Delvac 1300 Super 15W-40 CK-4 Doesn’t Meet Spec

by Thomas F. Glenn The Petroleum Quality Institute of America received a number of phone calls and emails recently with questions, comments, and opinions about the claim Shell is publicly making that through its testing, Shell “discovered that a sample of Mobil Delvac 1300 Super 15W-40 not only failed the requirements of API CK-4, but… Read More ›

Motor Oil Specifications – The Process of Change

by Thomas F. Glenn The PQIA has recently fielded many questions about the new API SN Plus Service Category and although some are technical, many others we received are more general and look to understand why specifications change and how the new specifications come about. The short answer why they change can be summed up by… Read More ›

Consumer Alerts Issued on Five Motor Oils

The Petroleum Quality Institute of America (PQIA) continues to observe two brands of motor oils in the market that consumers should watch out for and steer clear of. The brands are: Mileage 365 Q Motor Oil The result of the tests conducted on samples of these brands show products that can cause harm to virtually any… Read More ›

Results in on Three 5W-20s and Three 5W-30s

  The Petroleum Quality Institute of America tested three brands of SAE 5W-20 and three brands of SAE 5W-30 motor oil. The results of the tests conducted on samples of the brands meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories…. Read More ›

Results in on Three 5W-20s

The Petroleum Quality Institute of America tested three brands of SAE 5W-20 motor oil. The results of the tests conducted on samples of the brands meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories. CLICK BOTTLES BELOW FOR DETAILS  … Read More ›