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Old 12-21-2009, 03:38 AM   #23 (permalink)
bestclimb
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Join Date: Oct 2009
Location: South Central AK
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escort - '99 ford escort sport
90 day: 42.38 mpg (US)

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What has been your limit on how lean you can get? I understand that once the mix is lean enough it does not really support combustion and that it drops off steep (both on the lean and rich sides) How even is the mix across all 4 cylinders?
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