PCMO 
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 ›
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 ›
Results in on Three 0W-20s and One 10W-30 Motor Oils
The Petroleum Quality Institute of America tested three brands of SAE 0W-20 and one brand of SAE 10W-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 ›
Times are Changing!
GET READY FOR SN PLUS The Petroleum Quality Institute of America (PQIA) has been analyzing engine oil samples since 2009. Over that time, we have tested many brands, the majority of which have no issues; they meet their viscosity claims and are consistent with the API Service Categories on the labels. Unfortunately, however, we have… Read More ›
Results in on Four 5W-30 Motor Oils
The Petroleum Quality Institute of America tested four brands of 5W-30 motor oil (three synthetics and one conventional). 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… Read More ›
Four High Mileage Motor Oils Tested, Georgia follows Missouri on THF
Four High Mileage Motor Oils Tested The Petroleum Quality Institute of America tested four “High Mileage” motor oil brands. 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… Read More ›
Four OEM Motor Oils Tested
The Petroleum Quality Institute of America tested four “Genuine” motor oil brands. 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 Genuine motor… Read More ›