Got CEL on way home, will top off with E10 in the morning to bring % down alittle, still over 39 mpg indicated. Guessing it's limit is somewhere in the 50's. No driveablity issues, need to move the SGII back to that car (Impala's acting up) and learn how to get fuel trim numbers. Same engine as FFV HHR so was hoping I could go all the way without Johny but apparently not. Seem's better the BTU/gallon indicates it should but I'll continue for a few more tanks before declaring it for sure.
New station opened up barely out of my way home with E85 and E10 at same pump so splash blending got a lot easier.
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