I’m going to be bringing in my 03 Durango into the dealer this week for an engine shake that I’m getting and I’m a little nervous about telling them that I’m running a full synthetic oil. I’m worried that they may tell me that I’m voiding the warranty by running this. Has anyone run into this before? Does it void that warranty or not? Oh and while I’m thinking of it, if this shake that I’m getting is an injector, if I am under 36,000 miles, does anyone know if that’s covered or not?