Engineered for enthusiasts seeking maximum protection and performance.Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil.LSPI is the spontaneous ignition of the fuel/air mixture prior to spark-triggered ignition.
An oil must limit the temperature change within the turbocharger to 13 percent or less to pass the test.
We installed Signature Series 5W-30 Synthetic Motor Oil in a Ford* F-150 with a new 3.5L Ecoboost engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles.
Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention.
Original equipment manufacturers (OEMs) like GM* have addressed the issue by designing tests to determine a motor oil's ability to prevent LSPI.
The GM test allows up to five LSPI events to receive a passing score.