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.
Bring a large pot of lightly salted water to a boil. Cook spaghetti in boiling water, stirring occasionally until cooked through but firm to the bite, about 12 minutes. Drain. Heat a large skillet over medium heat; cook and stir beef and onion until meat is browned and onions are soft and translucent, about 7 minutes. Drain. Stir in spaghetti sauce and seasoned salt. Whisk eggs, Parmesan cheese, and butter in a large bowl. Mix in spaghetti to egg mixture and toss to coat. Place half the spaghetti mixture into baking dish. Top with half the cottage cheese, mozzarella, and meat sauce. Repeat layers. Cover with aluminum foil. Bake in preheated oven for 40 minutes.