16 hours ago, Osco said:
115,000, first transmission flush, old fluid came out looking just like the new fluid.. Shifted exactly the same after.
Flushed the cooling system,
Still running original factory brake pads front and rear... Yep you read that right.
I think there's a big diff in tranny wear between town-driven and highway-driven TCs. Aside from the clutch wear of going through the gears, 6F35s trannys do some monkey business with the torque converter clutch, allowing continuous slip in 4th-5th-6th below 50 mph (pretty much anytime below 1500 rpm) and also allowing slip on every on/off throttle transition, apparently for driveability reasons. Driving around with ForScan set up to monitor torque converter slip will show this stuff happening. The black fluid that results is from the carbon converter clutch, and then causes valve bore wear and further issues. The vans that are racking up 60k+ per year on the other hand are spending most of their miles at highway speed with the torque converter clutch solidly locked and the trans fluid staying clean (and any ferrous gear wear particles grabbed by the magnet inside the trans).