What i do to save gas and get alittle more power for about a week is disconnect the battery for about 10 minutes so the ECu has to relearn the prefered fuel map settings and it always selects the strongest map settings first then goes from there which in my case, living in sunny southern california with temps ranging from 63 to 100 degrees outside... seems to yeild the most mpg for me. Then after about a week's time the car eventually selects a slightly less agressive or powerful feul map setting and my mpg starts to drop.
