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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PQIA Examines Four More Diesel Motor Oil Samples

The results of the tests conducted on the second group of Heavy Duty Engine Oil (HDEO) samples are consistent with their labeled claims. Click bottles below for details.

 fordmotorcraft15w40frontfinished  shellrotellat15w40frontfinished proline15w40frontfinished valvolineblue15w40frontfinished
Ford Motorcraft Shell Rotella T  ProLine  Valvoline
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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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