The Sequence IX Test utilizes a 2012 Ford 2.0 liter, spark ignition, four stroke, 4-cylinder gasoline turbocharged direct injection (GTDI) engine. Features of this engine include variable camshaft timing, dual overhead camshafts driven by a timing chain, four valves per cylinder and electronic direct fuel injection.

Test Operation

The Sequence IX Test evaluates the ability of an automotive engine to mitigate pre-ignition in the combustion chambers in gasoline, turbocharged, direct-injection (GTGI) engines under low-speed and high-load operating conditions. This test method is commonly known as the Ford low-speed, pre-ignition (LSPI) test. In vehicles, equipped with relatively small gasoline GTDI spark-ignition engines, pre-ignition has occasionally occurred when the vehicles are operated under lowspeed and high-load conditions. Uncontrolled, pre-ignition may cause destructive engine damage. The test procedure is conducted in four iterations. Each iteration is 175,000 engine cycles in length.

Oil Specifications:

Sequence IX
API SN Plus Limits: Less than 5 events
ILSAC GF-6 Proposed Limits: TBD


Ford Motor Company, Ford 2012 in-line four cylinder engine with a displacement of 2.0 L, a compression ratio of 9.3:1

ParametersOperating ConditionsUnits
Test Duration700,000Cycles
Oil Level Checks20Hours
Coolant Flow55L/min
Oil, Block95°C
Coolant Out95°C
Intake Air30°C
Fuel at Rail30°C
Dew Point11.4g/kg
Intake Air0.05kPaG
Exhaust Air kPaG
Fuel at Rail450kPaG
Coolant System200kPaG

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