New Sample Assessments from PQIA

Most Recent Samples Examined by PQIA

High Mileage Motor Oil

High Mileage motor oils are typically formulated for use in vehicles with more than 75,000 miles. They contain additives that help reduce oil leaks and burn off by swelling o-rings and gaskets. In addition, some include additional detergent/dispersant or other additives to remove sludge from engines or provide other improved wear or oxidation performance. As with other motor oils, high mileage oils can be conventional, synthetic blends, and synthetic with corresponding use of different base oil types. 

Suggested reading for more on High Mileage Motor Oils is a piece written by David Lee Ph.D. Chevron Lubricants: “Vehicles are lasting longer…there’s an oil for that”

The following assessments include three more high mileage motor oils examined by PQIA and two conventional SAE 5W-30s. More high mileage motor oil assessments are coming soon...

High Mileage

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Quaker State Defy High Mileage SAE 5W-30 SYN BLEND Motor Oil
SAE 5W-30, API SN PLUS/ILSAC GF-5

The results of the tests conducted on this sample meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories.

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Pennzoil High Mileage SAE 5W-30 Motor Oil
SAE 5W-30 API SN PLUS/ILSAC GF-5

The results of the tests conducted on this sample meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories.

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American XT SAE 5W-30 High Mileage Motor Oil
SAE 5W-30 API SN PLUS/ILSAC GF-5

The results of the tests conducted on this sample meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories.

Conventional

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Klondike SAE 5W-30 Synthetic Blend Motor Oil
SAE 5W-30 API SN PLUS/ILSAC GF-5

The results of the tests conducted on this sample meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories.

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Peak 5W-30 Motor Oil
SAE 5W-30 API SN/ILSAC GF-5

The results of the tests conducted on this sample meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories.

Note: Although laboratory tests alone cannot be used to establish if engine oil meets an API Service Category, they can be used to determine if it doesn’t. The test results and PQIA assessments relate ONLY to the samples tested and the tests conducted.

Other High Mileage Motor Oils Recently Tested by PQIA

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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ANTIFREEZE & COOLANT

PETROLEUM QUALITY INSTITUTE OF AMERICA SAMPLE SUMMARY FOR ANTIFREEZE & COOLANT Antifreeze/coolant is critical for protecting engines. The primary

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