Best Lubricant Ever My driver's door on my Nissan wouldn't open because it was -30 degrees Celsius and I got in the car from the passenger side, no matter what I did to the door it wouldn't open. I sprayed on the door lock and after 15 minutes the door opened and it was really stuck in the open position too. Thank you Lubegard for this wonderful product. I use almost everything Lubegard has and all of the products work as advertised.