Here's what the gauge looks like my 2001 2500hd, and you can see what it indicates as being too hot, this being said, the hottest I've ever seen it is about 180 in the summer, unloaded.
Directions. 1  In a Dutch oven, cook ground beef and onion until meat is no longer pink and onion is tender; drain. 2  Add the next eight ingredients; bring to a boil. 3  Reduce heat; cover and simmer for 1 hour, stirring occasionally. 4  Remove the bay leaf. 5  Serve with spaghetti. 6  Garnish with oregano if desired.
Cook the spaghetti until firm-tender (do not overcook the pasta!) drain and toss with 1-2 tablespoons butter or oil to prevent sticking. In a saucepan melt 1/4 cup butter over medium heat (can use a couple tablespoons more butter if desired, I always do!) add in the sliced mushrooms and cook stirring until they release their moisture (about 6 minutes).