Any ideas what this gunk is on my exhaust stack? I haven’t taken it through a truck wash yet to see if it comes off. Trucker Access › Forums › Drivers lounge ” no politics” › Any ideas what this gunk is on my exhaust stack? I haven’t taken it through a truck wash yet to see if it comes off. This topic has 0 replies, 1 voice, and was last updated 6 months ago by BBW_trucker. Viewing 1 post (of 1 total) Author Posts May 20, 2024 at 5:15 pm #21342 BBW_truckerParticipant CDL Jobs Driver Jobs Food Pets Any ideas what this gunk is on my exhaust stack? I haven’t taken it through a truck wash yet to see if it comes off. Music Gift Cards Cell Phones Gadgets Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In