I have a 2003 Lincoln TC with 96,000 miles. I just dropped the transmission pan, no drain on the Torque Converter,and changed the filter and fluid. Only got 4.20 qts of old fluid out and. I refilled with motorcraft mercon v fluid as recommended by manufacturer.
Prior to the part fluid change my TC shifted to O/D lockup at 39 MPH. After just a few miles of driving it now shifts to O/D lockup at 36 MPH. The fluid in the tranny was always serviced by the local LTC dealer. The fluid I drained looked dirty with the normal amount of sludge mud on the magnetic. I saw no visible metal particles in the pan or filter.
I intend to drain it again in a few days using the pump out at the cooler line to get most of the old stuff out. I'd like to use AMSOIL ATF synthetic in this 4R70W transmission but have been advised against it.
I'd like to know others thoughts on this.
Prior to the part fluid change my TC shifted to O/D lockup at 39 MPH. After just a few miles of driving it now shifts to O/D lockup at 36 MPH. The fluid in the tranny was always serviced by the local LTC dealer. The fluid I drained looked dirty with the normal amount of sludge mud on the magnetic. I saw no visible metal particles in the pan or filter.
I intend to drain it again in a few days using the pump out at the cooler line to get most of the old stuff out. I'd like to use AMSOIL ATF synthetic in this 4R70W transmission but have been advised against it.
I'd like to know others thoughts on this.