#17-NA-157: Information on Spin-On Oil Filter Replacement for Gas Engines Designed with New Oil Pump Control Systems - (May 10, 2017)
Subject: Information on Spin-On Oil Filter Replacement for Gas Engines Designed with New Oil Pump Control Systems
All GM Passenger Cars and Trucks
LV7, LFV, LE2, LEA, LCV, LKW, LTG, LGX, LGW, L86, L83, L8B, LT4, LT1, LV3, LV1
Involved Region or Country
North America and N.A. Export Regions
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.