Any harm changing MTF early?

[BoostedDreams]

I’m just at 2,000 miles in my 19 CTR. Already bought 3 quarts of AC Delco modified synchromesh . I doubt it would hurt taking out the OEM fluid this early, can it ?

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[19typer]

Did mine as well, should be fine. In fact it shifts so much smoother now

 

[Patrick Bateman]

Did mine at 10k. Wish I had done it earlier.

 

[BoostedDreams]

Did mine at 10k. Wish I had done it earlier.

Did you replace the drain crush washer? If so, where did you pick it up?

 

[Patrick Bateman]

Did you replace the drain crush washer? If so, where did you pick it up?

I did. One of the OEM Honda parts websites. Got it along with some other random parts I needed to justify the shipping cost.

 

[BoostedDreams]

I did. One of the OEM Honda parts websites. Got it along with some other random parts I needed to justify the shipping cost.

Do you happen to know if the washer is the same as the engine oil washer? I have a few of those.
thanks

 

[Patrick Bateman]

Do you happen to know if the washer is the same as the engine oil washer? I have a few of those.
thanks

The one for the transmission is much bigger (20mm).

Their site is down for maintenance, but Dimple makes a magnetic plug that will work for our cars (M20x1.5x12) that comes with an appropriate crush washer.

here’s a link to another MTF change thread that may also be helpful. A user talks about said Dimple plug.
https://www.civicx.com/forum/threads/oil-change-and-transmission-fluid-change.16984/page-2

 

[19typer]

Yes I replaced it. Got it from Hondapartsnow and it is 20mm

 

[davidgostbo]

Why’d you get ac delco over Amsoil?

 

[19typer]

I used amsoil

 

[blitz]

The Honda MTF is good, but any of the other three shown in this list result in much smoother shifting:
1. Amsoil Synchromesh
2. Royal Purple Synchromax
3. AC Delco Sychromesh Friction Modified (Part 10-4014) - updated Part Number

Any of these (personal preference) are very good alternatives. Also, do not overfill the gear box. While on a flat surface, when the MTF begins to drip slowly from the check-fill hole, then stop adding MTF. More fluid will not result in better operation.

 

[BoostedDreams]

Why’d you get ac delco over Amsoil?

I used amsoil in my 18 si. After doing lots of research on the topic, I’ve seen more people prefer the GM synromesh aka AC Delco over amsoil in the CTR. I use amsoil signature series for engine oil though.

 

[BoostedDreams]

The Honda MTF is good, but any of the other three shown in this list result in much smoother shifting:
1. Amsoil Synchromesh
2. Royal Purple Synchromax
3. AC Delco Sychromesh (Part 10-4006)

Any of these (personal preference) are very good alternatives. Also, do not overfill the gear box. While on a flat surface, when the MTF begins to drip slowly from the check-fill hole, then stop adding MTF. More fluid will not result in better operation.

Different part # , but same description.

 

[REBELXSi]

No. I can't think of any scenario where changing the fluids "too soon" is actually a bad thing.

Inb4 "but muh break-in oil!"

 

[Jonno426]

Different part # , but same description.

How does this compare to the other GM synchromesh in the Type R? Has anyone tried both?

Isnt the 10-4006 more popular?