In response to a number of inquiries PQIA received over the past few months about heavy duty engine oils (HDEO), we took a look at HDEOs readily available on retails shelves. The results of the tests conducted on the first group of samples are consistent with their labeled claims. Click bottles below for details.
| SAE 10W-30 | SAE 15W-40 | ||||
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| Shell Rotella T |
Chevron Delo 400 XLE |
Mobil Delvac 1300 Super |
SuperTech | Mystik JT 8 |
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ADVISORIES, CONSUMER ALERTS, AND DON’T BUYS Consumer Alert A CONSUMER ALERT is issued by PQIA when the product tested has a significant
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
PETROLEUM QUALITY INSTITUTE OF AMERICA SAMPLE SUMMARY/HEAVY DUTY DIESEL ENGINE OIL Heavy duty diesel engine oils are formulated to meet the
PETROLEUM QUALITY INSTITUTE OF AMERICA SAMPLE SUMMARY/AUTOMATIC TRANSMISSION FLUID Automatic Transmission Fluids are carefully balanced to
PETROLEUM QUALITY INSTITUTE OF AMERICA SAMPLE SUMMARY FOR ANTIFREEZE & COOLANT Antifreeze/coolant is critical for protecting engines. The primary
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