Lexus LS460 knocking sound from engine at idle and low RPM, worsens with low fuel level on Lexus LS460

Some Lexus LS460 owners report experiencing engine knocking sounds at idle and low RPM, particularly worsening when fuel levels are low. This knocking can be attributed to several factors, including an improper air-fuel mixture, which may become more pronounced at lower RPMs. Additionally, low oil pressure is a common cause of this issue, making it crucial for owners to ensure adequate oil levels and pressure. Worn engine components may also contribute to the knocking, highlighting the importance of regular maintenance and timely replacement of parts. Furthermore, some owners find that poor fuel quality exacerbates the problem, suggesting that using high-quality fuel and additives can help mitigate knocking sounds. Lastly, incorrect ignition timing can lead to engine knocking, so ensuring proper timing is essential. If the knocking persists or worsens, it is advisable for owners to consult a mechanic for accurate diagnosis and necessary repairs to prevent further damage to the engine.