What is an optimum temperature to be running on the 6.2? Also, I was considering getting an exhaust temp gauge to tune it for max performance, but at the same time, I thought only turbo diesel benefitted from these. What are your thoughts on an electric water pump, if they even make them? I don't know why I'm asking that because on the trail the Toy will run constantly, spectating or being spectated. An electric fan will be the only thing I can run given the lack of space under the hood. I can probably scratch an electric water pump though. Sticks out too far. Sorry for all this guys, I'm just thinking out loud. Now for my weird question. I love smoke. I want the Toy to smoke, but I don't want to add anything harmful to the fuel or something that would damage the engine. Is there a way to "naturally" get it to roll black smoke when I stomp it, or does it come from wear?