Stephen
Rider
Oh wait, never mind, I found it. Was looking for that formula for checking the air in my tires.
:laugh:

:laugh:
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Actually this formula converts the pressure of winter air to summer air. Failure to change the air in the tires from winter to summer air can lead to the turn signals leaking blinker fluid.
That's why I triked my 2012, to get rid of the "foreign air" and replace it with air "made in the USA"