Oops, it doesn't look like 'fill your girls tank up for no reason day' is a national day..

Other days

Get Funky Day

Mean Girls Day

Chocolate Milkshake Day

Fiancee Day

Frozen Yogurt Day

Gum Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Kiss A Ginger Day

Kiss A Brunette Day

Lash Day