strange thing i noticed today that i dont think has ever happened.. my engine just didnt want to warm up.. usually i run at 173-180 degrees F in this type of weather.. up to 186 in the summer.. on my way home tonight it was about 56 degrees F.. and i noticed about 15 minutes into my drive my water temp was only at 162.. i was cruising at about 65mph going up a slight incline most of the way... i thought it was strange, never seen my temps that low by time i got home.. had barely hit 170