Fault Finding Glow Plugs and what they mean

Opie Oils and our friends at Denso have come together to help you understand the faults you might find your glow plugs in. Ensuring your glow plugs are functioning correctly is an important part of keeping your engine in good health. But how can you tell the difference between a plug that’s doing its job and one that’s on its last legs? Well, the appearance of the probe tip of a used glow plugs directly reflects the condition of an engine.