Valvoline recently introduced new motor oil formulations designed to protect against low-speed pre-ignition (LSPI) in gasoline-powered vehicles.
LSPI is an abnormal combustion event caused by higher in-cylinder pressures, which are common in engines that are newer, e.g., those that are turbocharged and/or gasoline direct-injection (T/GDI), while operating under low-speed, high-torque conditions. LSPI's milder effects can include engine noise or rough idling, but they may also cause catastrophic damage that results in engine failure.
Valvoline is the first major motor oil brand to specifically address LSPI and to meet the newly approved API SN Plus standards, which were recently approved by the American Petroleum Institute (API) but have yet to be officially implemented.
In addition to combating LSPI, the new formulations will also offer protection against excessive timing-chain wear, an issue to which the unique combustion characteristics of GDI engines can contribute.
"Additive technology in motor oil formulation has been proven to help avoid LSPI, making it essential for preserving performance and reliability in newer engines," said Fran Lockwood, Valvoline's chief technology officer. "Valvoline is leading the industry by adopting formulations that prevent the harsh effects while maintaining the integrity of the oil's basic performance."
For more information, visit www.valvoline.com.