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Re: Sudden MPG increase at 90K miles (92 525ia) (archive)
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Posted by Jose on June 11, 2000 at 20:14:13:

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?

Same with mine, the most I could get in the highway was 25.4 or 26 mpg, now Im getting 28.7
in the highway. No change in gas brands, it just
started to give me more MPG. My car is only 67K miles.

Jose

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