Did you just have an oil change by chance? If so, sometimes the mechanics do not clean oil that spills on the frame below the oil pan. Just a thought
Current Truck: 2019 GMC Sierra Denali Duramax 2500, loaded.
Former Trucks:2016 GMC Sierra Denali Duramax Z71. every option with the exception of rear seat video. Snugtop truck cap with keyless entry, Edge Insight CTS II, custom rear back up camera for my boat trailer with quick disconnects.,2012 GMC Sierra SLT 2500 HD Crewcab, Duramax, Z-71 (4x4),Bilstein Steering Stabilizer, EGR fender flares, Century cap with interior carpet, BedRug, S & B cold air intake, stainless nerf bars, Banks DPF back Monster Exhaust, GM Under rear seat box, Edge