2011 Ford F-150 FX4

[D_Eclipse9916]

Jake - what was their logic? I have heard flush services are a kind of a scam because the torque converter is running in bypass unless the car is moving, what was their reasoning?

I have heard to never flush a trans, more likely to send shit into places where it doesn't belong than to clean.

Drain and Fills. Kind of annoying on the Diesels because they take stupid expensive trans fluid. The Allison engineer says to drain and fill 2 or 3x to get 90% of the fluid. At $120 a pop for a drain and fill in fluid I am just going to do it every 30k. once. That way there is always new additives in it. Reminds me I am coming up on doing all of mine as well.