Preventing engine damage caused by LSPI

LSPI

The increasingly stringent emission regulations and fuel-economy demands have forced engine manufacturers to downsize engines while improving their power and torque. The downside of today’s smaller engines with higher power density is their risk to abnormal disruptive combustion, such as knocking and a new phenomenon called low speed pre-ignition (LSPI).

The challenges of a low HTHS viscosity

HTHS

The Society of Automotive Engineers ( SAE) recently introduced new specifications concerning low viscosity in the J300 motor oil classifications. These new specifications will help OEMs (Original Equipment Manufacturers) to achieve the increasingly stringent requirements in terms of fuel economy. However, this extremely low viscosity may bring many challenges concerning sustainability. Let us explain.