2006 GMC Yukon XL Mileage 165,626 Service Date 7/13/2021 Services Performed Leak detection dye has been added to diagnose future leaks if they occur. Rear differential cover is leaking. Curtis G. gave our service a 5 star review on 7/16/2021 CRM Mitchell1 2021-07-17T22:01:05+00:00