| FORD-4S IDLE ECT DATA/NOTES |
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Test vehicle: 2002 Mustang 4.6L SOHC w/OEM radiator
Control conditions: 15 min hot idle with A/C on low, cooling fan on, hood open & IAT 120°
Logging performed: August 12, 2009
*Stock OEM thermostat (Motorcraft RT1196): Sustained ECT of 190°
*170° Performance Thermostat (Ford 4.6/5.4L SOHC): Sustained ECT of 174°
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