found this in the Acura ServiceNews publication, Jan 2008:
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Some A/T repair procedures call for flushing the trans using Acura Precision Crafted ATF-Z1 (and no substitutes). Problem is, where do you find the info to do that? It¹s not listed in the S/Ms and if you do an ISIS search, you¹ll find a few ServiceNews articles on this subject, but they¹re rather dated, and none of them say the same thing. NOTE: The term ³flushing² refers to repeatedly draining and refilling the trans with Acura Precision Crafted ATF-Z1. Don¹t confuse it with aftermarket flush systems. American Honda still strongly recommends that you avoid using them on any Acura vehicle. The original procedure was written for simpler A/Ts that readily upshifted when you ran the vehicle on a lift. But A/Ts have come a long way since then, and most of the newer ones balk at shifting past 2nd gear when on a lift, unless you work the shift lever a certain way. In light of all this, we thought it was high time that the A/T flushing procedure got a facelift. So here¹s the latest word on flushing that works for all A/Ts:
- Set the parking brake, and raise the vehicle on a lift.
- Drain the trans, and refill it with Acura Precision Crafted ATF-Z1. Refer to the applicable S/M or to ISIS for details.
- Start the engine, shift into Drive, and release the parking brake.
- Push down on the accelerator pedal to raise the vehicle speed to
- Make sure that the trans shifts through all the forward gears and goes into torque converter lockup.
- Let off the accelerator pedal, and press the brake pedal to drop the vehicle speed to zero. Shift into Reverse and then into Neutral.
- Shift into Drive, and repeat steps 4 thru 6 four more times.
- Set the parking brake, and repeat steps 2 thru 6 two more times.
- Drain the trans, and reinstall the drain plug with a new sealing washer.
- Refill the A/T with ATF-Z1.