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fuel economy
Negative. Once treated never had another misfire. You could consider the coincidence a miracle happened coincident to the injector cleaner but in that case I couldn't drive two miles without misfire and than no misfire for 18 -24 months with treatment 2x a year.
With the current situation I haven't driven enough to know much other than I haven't driven any distance wo lean code in months and after one treatment I drove about 90 miles and no lean code yet and coincidentally a big jump in mpg, however 1 may gas up, possibly summer gas is a factor.
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2011 E70 • N55 (me)
2012 E70 • N63 (wife)
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