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The ACDelco PF66 is an original-equipment replacement oil filter built to GM's specifications for the engines that call for it. It is a conventional spin-on canister filter with an anti-drainback valve and bypass valve, the same part number many GM vehicles left the factory with. It suits owners who want a factory-fit filter for routine oil changes rather than a premium extended-interval filter. Against aftermarket rivals it wins on exact fit and factory validation, but it is not designed for long drain intervals the way some synthetic-media filters are.
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Lowest price we've seen: $9.98 on Nov 13 at Walmart. Tracked across 6 stores since Nov 13.
Buyers rate it highly, mostly for exact fit and leak-free sealing on GM engines. Complaints are few and tend to be about cross-reference confusion rather than the filter itself.
The ACDelco Original Equipment Professional PF66 is an engine oil filter for cars. It helps keep a clean supply of oil moving to engine components, which helps prevent engine erosion and failure.
ACDelco Original Equipment oil filters are designed, engineered and tested to rigorous standards and are backed by General Motors.
