17-NA-157

Bulletin No.: 17-NA-157
Date: May-2017
Subject:
Brand:
Buick
Cadillac
Information on Spin-On Oil Filter Replacement for Gas Engines Designed with New Oil Pump
Control Systems
Model:
All GM
Passenger
Cars and
Trucks
Model Year:
VIN:
from
to
2012
2017
from
to
LV7, LFV, LE2,
LEA, LCV, LKW,
LTG, LGX, LGW,
L86, L83, L8B,
LT4, LT1, LV3,
LV1
Chevrolet
GMC
Involved Region or Country
Engine:
North America and N.A. Export Regions
1
Transmission:
Information
Today's engine has very tight tolerances, two stage oil pumps and high flow lubrication system
requirements. The proper match of oil filter to engine application is more important than it has ever
been in the past. The use of a replacement oil filter with an internal bypass valve opening pressure
specifications of 15 PSI (100 kPa) or less, allows debris to circulate in the engine causing damage to
bearings and other tight tolerances areas, which may result in premature engine failure.
The oil pressure was increased to accommodate these tighter tolerances. As a result, the oil filter
specifications of the production oil filter and the service oil filter were also improved to meet the new
engine requirements.
Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out
pressure. This means that the oil pump now 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.
Main gallery feedback oil pump control systems are present on the following engine families which
use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6)
Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil
pump control systems are factory built with an ACDelco® oil filters.
Important: The PF64 and PF63, which is commonly confused by many in the automobile service
industry as an ACDelco® PF48 and/or PF48E , 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 (PF48/PF48E = 15 PSI (100 kPa), PF64/PF63E = 22 PSI (150 kPa).
Note: Any aftermarket filter must also have an internal bypass valve opening pressure specification,
element integrity, filtration performance, media particle trap specification and burst strength that is
equivalent to the ACDelco PF64/PF63E filters.
Parts Information
Refer to the Electronic Parts Catalog (EPC) to determine the proper part numbers for the replacement oil filter with an internal bypass valve opening
pressure specifications of 150 kPa and features that are equivalent to the ACDelco PF64/PF63E oil filters.
Version
1
Modified
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions
that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the
equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin
applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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