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Update on 740 Turbo engine longevity post 700 1989

My 87 230FT went to 247K miles before the turbo seized. At 282,700 miles it developed a rod knock and the motor was replaced with a Volvo Remanufactured motor. The original motor got 3,000 mile dino 10W30 oil changes. Let me add from 125,000 miles on, it had a Saab APC system installed with the boost set at 14.5 psi. The car was and is driven hard with meticulous maintenance done on it. Nothing but Volvo parts are used on it and only Volvo techs or I work on the car.
The new motor is filled with Mobil 1 10W30 (4,000 mile changes) and I only use Volvo(Mann)oil filters. My K&N filter was tossed in the trash and I went back to factory air filters. Too much silicon(dirt)was found in my oil analysis.
I'm only 3800 miles from my 300,000 badge.






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