well if you feel it could have been caused from a fill up at a station, then run out as much as you can, fill up elsewhere and do a full SeaFoam treatment on it.

The missfire on #2 just could have been caused by the fuel, try the seafoam treatment first, might save you some work.
_________________________
2002 SE/SC R.I.P. March 2015
Bielstien's
Shrock Sliders
Reman'd engine installed 5/16/09 at 87,894 miles

Captain 38-90
Member of Fire District-38 Station-1 since 1991.
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