Re: Synthetic ATF vs Mineral ATF

["Jeff Lloyd" <jslz3@xxxxxxxxxxx>]

Brandon,

Very simple answer, The Synthetics are too sliperly. at least with the 
manuals, The Sincromeshs need a little resistance to work properly too much 
slip and you have (what feels like) no syncros (ask me how I know) I guess 
the auto's need a little resistance to operate properly.. they have 
lubricated clutch type devices also I think...  Yes Synthetic does provide 
superior lubricating properties (if that is what you want)
YMMV
Jeff Lloyd


>
>         A friend of mine enquired with the BMW dealership if he should use
>synthetic ATF for his E36 325i with the ZF 5-speed autobox.  The BMW 
>service
>department said that synthetic ATF should NOT be used in the BMW 
>slushboxes.
>No reason was given but he only recommended using the regular mineral ATF,
>as per BMW service instructions.  Now that puzzles me coz I always thought
>Synthetic Lubricants are superior to the mineral oil and they exceed the
>specs of regular mineral oil.  I must admit that my auto tranny, now with
>the Mobil Synthetic ATF does not shift as smoothly as before, when it was
>filled with Motul Mineral ATF.  Does anyone out there have any idea,
>comments, recommendations?  Hope you all can shed some light.  Thanks a 
>lot!
>
>Regards,
>Brandon Ong
>Singapore
>95' 320i Cabrio - 5 Speed Auto
>
>


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