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RE: Octane



In response to Phil Marx  BMWCCA #6024:

>Your 535i is designed and specified to run just fine on 87 octane =
regular
>unleaded gas.  IMO there is nothing to be gained by using premium over
>brand name regular...........

I concur with Phil's suggestion. Before I added my Dinan chips
I tried 87, 89, and 93 octane fuels and noticed an inverse relationship 
with MPG and Octane. With higher octane I got lower MPGs.
Of course now i am required to use 92+ octane with the Dinan chips.
I used to manage over 20 mpg with regular unleaded fuel when I used
cruie control.

Prakash Maggan
'92 DINAN 750iL
[email protected]
http://ourworld.compuserve.com/homepages/PrakashMaggan