Quote:
Originally Posted by diesaroo
One SIB that really struck me was SI B13 02 10. BMW evidently by either a special testing device, or by interrogating the computer can determine for gasoline engines, what octane level is in the fuel you have been using over the life of the vehicle, or for diesel, the cetane number of the fuel most often used.
Also, 51 is the cetane number most quoted in these "internal" documents as being required, but for most people is not readily available. It's really a catch-22 for most folks: you are not allowed to use diesel fuel additives but you must be using high cetane premium fuel or face having your poor quality of fuel being blamed down the line. 
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Interesting.
There is a legal doctrine of 'warranty of merchantability', that some opine would require BMW to only sell cars that can be fueled by the fuels sold in the market.
They cannot sell cars that require special fuels into markets where those fuels are simply not sold...some may argue that 'they put it in the owners manual', but that may not protect them.
It will be interesting to see if this ever becomes an issue..BMW surely has used the "crappy american fuel" argument, but most people don't fight too hard....
A