Good question. What I just drained out smells like diesel, looks like diesel, and has the viscosity of diesel.
The plastic drain plug came out easily with a number 2 Phillips screwdriver. There's an o-ring that has to be cleared. It starts flowing quickly. The drain is about an arm's length under the drivers side of the vehicle, positioned about where the b-piller is.
I drained a little bit into a bucket, blue unfortunately. I don't have enough miles to have a ton of water in the filter, and I've been using only TopTier fuel brands, which hopefully isn't just a marketing ploy.
I haven't gotten a warning, so it's not a problem currently. Don't know how much water gets in the filter before the warning pops on. Am assuming a small plastic paint bucket would hold the contents.
Oh, and the cup of cheer was a hot coffee.
2015 Jeep GC Overland Ecodiesel