This subject has been covered literally a thousand times (do a search) and there is no answers for getting more milage out of your vehicle. Those of us who have them counted the cost when we purchased them so we keep driving and enjoying.....

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….