Personnally, i think that from the moment you have high differences of temperature and frictions, nothing on earth is lifetime and lifetime guaranteed.

This is only good for BMW, if we change fluid ATF then we are not anymore under guaranty as we didn't rexpect their recommandations. Then all disfonctions of the automat is at our own costs (and we perfectly know how much it cost....). Better to change a 5.000$ automat than change fluid of it for 150$ and keep the original one. Business is business.

If it was so, then why our engines oil don't support the same specificities of lifetime guarantee, same for "bridges" front and back.....

It is pure commercial argument but not fact.

From a minus of their automat quality, BMW try to explain us than this is a big plus of super fluid quality...

.... Sometimes these germans are funny and so simple minds

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