where to get the elusive Shell M-1375.4 ???

[mfiver]

I've read endless threads on transmission fluid changes, and I know that my 2004 X5 with the ZF 6HP26 transmission takes the Shell M-1375.4

In all the research I've done, I've never found a source for the Shell M-1375.4 other than the dealer, who charges about $700 for a 20L bottle.

Has anyone found a place to buy the Shell M-1375.4 ?

PS - Bav Auto lists the ESSO LT71141, which is used for the earlier 5 speed X5's, and I believe is incorrect for the 6 speed. Pelican and BMA sell the Pentosin ATF 1, but I've never seen documentation saying the Pentosin is an acceptable replacement for Shell M-1375.4