Quote:
Originally Posted by Daox
Do you guys find lean burn very inconsistent? I have. One trip it'll just lean burn its heart out. I have adequate power in lean burn, maintaining 45 mph very easily at 100 mpg. The next trip I'll be struggling to even keep in lean burn at 45 mph at all while maintaining speed.
What factors affect lean burn mode?
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I don't find too much variation, but as MetroMPG says, sometimes the battery is charging slightly in the background without showing up on the meter. Rain also pretty greatly increases rolling resistance, and cold does all sorts of mean things to economy. On a cold, wet or snowy trip where the battery is charging, I see half the mpg numbers as on a warm clear day.