In a small bowl combine the cayenne pepper, lemon pepper, garlic salt, paprika, onion powder, brown sugar, and Ranch dressing seasoning. Mix well and set aside.
Place the pretzels in a large gallon sized zip top bag. Pour the vegetable oil into the bag, seal, and mix the pretzels with the oil.
Open the bag and sprinkle in the seasonings. Close the bag and shake to get the seasoning on all of the pretzels. Allow to sit for 20 minutes.
Preheat the oven to 300 degrees. Spread the pretzels out on a large baking sheet.
Bake for 30 minutes, stirring halfway through the baking. Remove the pretzels from the oven and allow to cool completely.
Store in an air tight container for up to 2 weeks.