I have recently purchased a 2013 Chevy impala with the 3.6l engine from a guy that I plan on driving to work to save miles on the new truck. The guy told me whatever you do use the AC delco filter on it when you change oil. He said the dealer told him there was a Service bulletin sent out to the dealers when he bought it new that this was the only filter that was to be used for this engine due to flow rate or something. Iv never seen or heard this and me thinks the dealer was pulling his leg to get him back for oil changes. Has anyone ever heard of this? I was just going to use my old standby napa gold filter when I done it.