Welcome to the forum, & congrats on the new truck. You may want to double check the info the dealer gave you concerning warranty. When sig truck was purchased, the lifetime/unlimited mileage warranty was not available for diesel vehicles. Maybe things have changed. I purchased the 7 year 70,000 mile warranty from Chrysler Max care for $1500.00 at time of purchase. Mine also has a $100 each visit deductible. May you have many happy, trouble free miles ahead. I hope you will like your truck as much as I do mine. Best wishes.