It is not a question of how much it translates to gas alone....
For me, extreme P&G leaves my battery on a diet all through - it is never full and satisfied... If I could save on the consumption by the Lamps - the objective is not to delete, but economize on the drain there has to be - I can save on hair dye. I am perpetually worried about not being able to start for the next trip.
Even when I exaggerate, I consider this point to be important from this aspect.
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