ENGINE DIAGNOSTICS · TROUBLESHOOTING
Black Smoke, White Smoke & Blue Smoke from DG Genset: Causes, Meanings & Fixes
Persistent black, white, or blue smoke from your DG genset is a warning sign you should never ignore. Each smoke colour points to a different issue inside the engine — from incomplete combustion and coolant leaks to dangerous internal oil burning. In this guide, learn what these exhaust smoke colours mean, their most common causes, and the practical troubleshooting steps that can help prevent costly generator failures and unexpected downtime.