Rhino Equipment Services on Instagram: "End of the day job on a Volvo engine throwing low DPF pressure codes. Root cause? The machine was run completely out of DEF fluid. Refilled the DEF system, added a little air pressure to the tank to help prime it, and luckily the system came back online and started working like it should. No parts needed this time—just proper troubleshooting and knowing how these aftertreatment systems actually operate. Another machine saved and ready to go back to work. �