Most grey fleets are managed for basic mileage compliance, but the real cost lives in the shadows. Hidden insurance gaps, overclaimed mileage, downtime, admin overhead, and emissions often add 40–60% on top of visible reimbursement spend—turning “cheap” grey fleets into silent profit leaks. This post breaks down a practical Total Cost of Ownership (TCO) framework and shows how GPS telematics and verification tools like Fuelshine can turn those invisible costs into measurable

Grey fleet liability can expose HR, HSE, and Finance teams to duty-of-care risk, mileage fraud, and CRA/IRS audit issues. This guide explains how AI coaching and automated mileage tracking help reduce risk and control costs.