Anyone ever find there exhaust smells like old gas?

[punched355]

The other day while hooking up my trailer i noticed my exhaust smelled like old gas or paint thinner, the gas is fresh supreme same fuel thats in the car and the truck runs fine just wondering if anyone has had the same issue?

 

[Fordum]

What was on the trailer??
If you had or had had anything that did have old gas in it, you might have been smelling that.
Also, if the engine was dead cold, it would have been running rich until it warmed up, and often that will cause it to smell like that.

 

[TheBeast_88K5]

Mine smells like a gas station, when I start it up.
(That stale, old gas/exhaust smell.)

It goes away after warm up.