Quote:
Originally Posted by JCL
They didn't design transmissions for BMW. They sold existing transmissions. They required certified fluid specs. GM own the Dexron spec. ESSO owns the LT spec. Lots of companies make certified fluids. BMW can buy and relabel any certified fluid they like
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The point I was making still stands regardless of if the BMW trans was an existing or clean sheet design. The ATF sold thru the dealer network is nothing more then an existing spec fluid, provided by a contracted fluid manufacturer, identified by the BMW designated part number. BMW will NEVER put the spec details on the bottle because this would only provide the purchaser the info required to purchase fluid elsewhere at a lower price. Keeping the customer buying from a BMW parts source = $s!