I also have heard the split oil pan seal tends to leak... IF thats what it is,,, (from what I have seen on a Duramax forum) they need to let the sealer setup 24 hrs before using... GRRRRR I'll keep an eye on mine... IF its just a small seep,,, I personally wouldn't postpone a schedualed vacation... I would just check the leak and oil level every stop... You might even check the pan bolts for being tight... Might help prolong the repair till you get back... DON'T overtighten !!!! These oil pans are aluminum... My opinion....
Monkey, pilot of a Great Dane hauler,
2015 Silverado 2500 Duramax/Alison 4x4 CrewCab 2016 Cougar 28SGS