I should have done this ages ago, but finally got to it tonight. I've had this oil sitting around for probably over a year now. Its stock spec 75W90, but full synthetic.
Draining was quick and easy.
Filling took a while. It was only about 20 degrees out tonight so this stuff was thick. Thankfully, my wife called me in for dinner just as I started pouring. She had cooked up some great porkchops and the oven was still warm. I ate and the oil warmed up. Even with this, it still took a while to get it all in there.