Spin-On Oil Filter Replacement

The correct match of oil filter to engine application is more important now than ever with the tight tolerances, two stage oil pumps and high flow lubrication requirements of today’s modern engines.


Beginning in 2012, oil pumps began to regulate main gallery feedback instead of pump output pressure, which means that the oil pump does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.


To meet these new engine operating requirements, the oil filter specifications of production oil filters and service oil filters have been improved. If a replacement oil filter with an internal bypass valve opening pressure specification of 15 PSI (100 kPa) or less is used, debris could circulate in the engine and cause damage to bearings and other tight tolerances areas, and eventually lead to premature engine failure.


PF64 and PF63 Filters


The PF64 and PF63 (Fig. 20) filters are commonly confused as an ACDelco PF48 and/or PF48E filter because both oil filters have the same appearance and oil can size. However, these oil filters are not the same and have different internal bypass valve opening pressure specifications. The PF48/PF48E has a pressure specification of 15 PSI (100 kPa) while the PF64/PF63E has a pressure specification of 22 PSI (150 kPa).


Fig. 20


Refer to the Electronic Parts Catalog (EPC) to determine the proper part numbers for a replacement oil filter.  If an aftermarket filter is used, it must have an internal bypass valve opening pressure specification, element integrity, filtration performance, media particle trap specification and burst strength that is equivalent to the original production oil filter.


– Thanks to Tracy Lucas

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  1. The PF64/PF63E is designed for the GEN 5 engine with a variable displacement oil pump so it can’t be used on a GEN 4 engine.

  2. Darrell Holloway says:

    Your third paragraph states that a bypass opening pressure of 15 PSI or less could cause engine damage but the fourth paragraph states the PF-47 has an opening pressure of 15 PSI. Would not the PF 64 or 63 be a better choice due to a higher opening pressure?

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