M50B25 與S50B30 的機油芯有何不同?

[樂大]

M50的11421730389就是由Mahle代工的 OX68D，做成BMW不外賣的料號11421711568
S50/S52/S54的11427833769是由Mahle代工的 OX187做成BMW不外賣的料號11427833242
我有寄信問Mahle公司OX68D跟OX187有什麼不同，以下是他們的解釋..
Hello ,
Thanks for your inquiry and interest in MAHLE filters.
To explain the differences between the two filters, OX187D replaces OX68D only on BMW M3 & Z3 M - models. The OX68D is still used in other BMW models as before. The OX187D is almost identical to OX68D but uses an upgraded media.
Hope this answers your questions. If you need more information, just let me know.
Best Regards
John Enright
MAHLE, Inc.
Aftermarket
One MAHLE Drive, Morristown, TN 37814
Telephone:423-318-7974 Fax: 423-318-3190
John.Enright@us.mahle.com, http://www.us.mahle.com

它的意思是...
OX68D跟OX187大致上是相同的，但OX187升級了media...
我覺得它講的media是濾網的紙，因為在後期BMW的機油開始使用長效型的機油(Longlife)，為了能夠更長距離換油，必需要改變濾芯的材質，才能更長時間吸附引擎中的雜質.