I've just done another quick oil change on the trusty 106D and the filter I've had floating around for a few months was an AL code.
I thought that the Citroën equivalent of the Peugeot filter (1109T0) was a T1 ?
Is the AL an older filter (old stock?) unless part numbers have changed in the past few years.
It used to be (Peugeot) N2 for the older cars on the shorter intervals and T0 for the larger intervals ie post 98, I think Citroën would of been N1 (or N3) and T1 respectively.
Not too important although really I wanted to know if the AL is an older filter than the T series or not and if so I assume its the 'long intervals' filter, not that it matters as I'd not leave oil in a TUD for 10K anyway. 5/6K changes for me.