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Re: my guess would be gas prices have (archive)
[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]
Posted by changed your driving style :^) (e) ron on June 12, 2000 at 12:06:52:

In Reply to: Sudden MPG increase at 90K miles (92 525ia) posted by Derek Z on June 11, 2000 at 14:26:21:

: Around the beginning of the year, right as my 92 525ia crossed the 90,000 mile mark, I got an inexplicable increase in MPG.

: For the past 8 years with my mix of mostly in-town driving, I was getting 18.1-18.8 MPG overall. This was according both to the OBC and independent calculations.

: But since the beginning of the year, the OBC reports my average MPG in the 20.0-20.6 MPG range! That's with no changes in my driving patterns, no changes in the several places I usually buy gas (QT, Texaco, or Costco), and well between any times I had the car serviced. It started about two months *before* I took it in for its Inspection II @ 94K miles.

: While better MPG is a good thing, I am extremely curious how the car could suddenly start getting an extra 2 MPG over what it has been doing for the past 8 years. Y2K bug in the OBC? At 90K the engine is finally over its 'break-in' period? ;) Or what?



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