It means "more tolerant" of fluid condition.

Nowhere does it state that the condition of fluid won't have any negative impact on the life of the transmission. How long will it adapt before it can adapt no longer? Again, it's an argument that can go on forever because there is no concrete, technical data to prove one theory or another.

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Current Bimmer
2004 X5 4.4i Sterling Grey Sport/Premium

Past Bimmers
1991 318I Alpine White
1995 740I Alpine White
1991 525I Schwartz
1998 323IS Scwartz
2004 330CI Cabrio Titanium Silver Metallic
1995 540I Schwartz
2000 Z4 3.0 Titanium Silver
2000 330ci Coupe Titanium Silver