In a small bowl, mix together cayenne pepper, lemon pepper, garlic salt, dressing mix and vegetable oil.
Place pretzels in a large, sealable plastic bag (or I use a large bowl with a fitted lid). Pour mixture into bag. Shake well. Allow pretzels to marinate in mixture 2 hours before serving. Shake occasionally to maintain coating. (If you want, you can spread pretzels on a cookie sheet and bake them at 250 degrees for 20-30 minutes.).