Burning engine oil emits a distinctive, acrid odor often likened to burnt toast or a pungent, chemical-like smell. When engine oil gets too hot, it breaks down and begins to burn, producing this recognisable scent. The aroma can be described as heavy, smoky, and slightly sweet with undertones of petroleum. It is not a pleasant smell and is often an indication of an issue with the vehicle, such as a leaking gasket, worn piston rings, or an oil leak .Recognising this scent is crucial for vehicle maintenance as ignoring it could lead to engine damage or failure. If you detect the smell of burning engine oil in your car, it is advisable to promptly investigate and address the underlying cause to prevent further complications.