Solved! : Are muffler stains normal?

Flying out of town for the weekend so the dealership will have to wait until Monday. Noticed it while washing the truck this morning. It’s not oil, but maybe water rusting from condensation on cold mornings? 12K miles.

 

You sure that's not oil? I haven't seen anything like that on mine or anyone else's for that matter.

Did your frame get treated with rust prevention like fluid film and maybe it got all over the muffler?

 

I can smell this picture from here.

 

Can’t say what it is. Could be something spilled in it pre assembly.

 

There's really no point that oil would be within like 4 feet of that spot, but it def looks like that, doesn't it?

Your fluid film idea could be something.

 

Im gonna guess some sort of road spray, or something in your bed drained through the front bed holes and dripped onto the muffler body

 

yeah I was thinking maybe some bad leak that worked down the driveshaft from the tcase or something, but then it would be splattered everywhere not running down.

My slip yoke has splattered grease all over the place under my truck when I overgreased it but I don't think the 3rd gens have a grease able one, plus it looks like grease not oil

 

Doubt it's condensation. Seems way too dark to be water

 

Out of curiosity, anything coming out of the tail pipe?

 

Could also be a liquid in general that has burnt from the exhaust temp.

 

No. Not normal. Likely not a problem either. Looks like opossum diarrhea however.

 

ive seen an exhaust with a plastic bag that had stayed there long enough to melt itself on there, it looked similar to that actually

stick your hand on top of the can there (assuming its not hot) and see if you feel an chunk of plastic up there melting away

 

Good idea

 

Maybe a quality dewormer.

 

I thought maybe an animal curling up at nights on a warm exhaust taking a piss

each stream looks identical like same peeper squirting out some squirrel juice

 

I agree with @uurx - seems like something melted on top.

 

ding ding ding!

Went camping over the weekend and my brother failed to mention he spilled a gallon of orange juice in the truck bed. The mat was pretty sticky, I should have put 2&2 together. Thanks guys!

 

lick it off and tell us what it tastes like

 

Tastes like burning