This was just published today for GM dealers..
Quote:
Subject: SPO - Bulletin GMP09-073 - Design Change to PF46, PF47, PF52 and PF61
--------------------------------------------------------------------------------
To: Buick, Cadillac, Chevrolet, GMC, HUMMER and Pontiac (including MD)
DESCRIPTION:
ACDelco is implementing a design change on the PF46, PF47, PF52 and PF61 ACDelco oil filters due to capacity constraints on the current product design. GM engineers have approved the new design which will begin to be incorporated in upcoming vehicle designs. This OE approved and manufactured filter provides the same Duraguard filtration performance as the previous design and specifically utilizes the original ACDelco media that traps particles up to 25 microns. Additional features include a slightly smaller can, fully covered baseplate, non-metallic end caps and high strength nylon core. This newly designed oil filter has the benefits of not only bringing excellent filtration performance, it is also environmentally friendly with components that can now be easily separated into steel, oil and parts to incinerate, resulting in less waste.
At this time, the Durapack versions of the alternative design filter will begin shipping. The boxed or individually packaged versions will utilize the available production capacity on the original design, where possible, and will otherwise begin to roll over to the new alternative design.
GM Parts appreciates your business and stands behind each and every filter that we distribute with pride and confidence. Should you have any concerns or questions at all, please feel free to contact the writer or your local GM Parts Fixed Operations Development Manager.
EFFECTIVE DATE:
April 1, 2009