The thread title may be a little confusing and have many meanings, but I've been meaning to ask how long oil takes to flow to where it should when a car is started. More specifically, Mobil 1 5w-30 in 40 degree weather. I want to know because I want to get it to that level, wait another 10-15 seconds and then drive off. Any other advice to this? I figure I'm not going to sit there and wait for all parts to warm up because in cold, rainy weather it will take too long - causing too much engine idle and too much wasted fuel. I just want the oil where it should be, fluids flowing in good order, and take off.