2005 GMC Sierra 1500 Q&A
2005 GMC Sierra 1500 Question: Why is oil coming out of my muffler? How much would it cost?
Better have a mechanic confrim your findings. For oil to come out of the exhaust, it would be running like crap and smoking intensively! That stuff comming from the weep hole in the muffler is most likely condensation mixed with exhaust soot, kinda looks like oil. More obvious in cold weather. Now it may have a leak somewhere and is collecting on the muffler. 33289 km is only 20,600 mi. That what the odometer is showing? I really don't think you have any problems with the truck! - pushrod