Rep Power: 256

went to the dealer today to get automatic trans fluid and all they had was the new ATF-DW-1. im driving a 04 that doesn't have the best shifting so im praying it doesn't start slipping on me wish me luck.

 
Rep Power: 284

Good luck, keep us updated please.

 
Rep Power: 0

I did this two weeks ago. Seems like it shifts a little bit smoother, but its not too noticeable. The only noticeable difference is when I'm going 35-40 mph and I let off the gas and get back on, it doesn't jerk anymore.

I don't know if this is slipping but can someone tell me if this is normal? As I accelerate from 30-40(45 ish)mph my rpm goes up then down then back up (AT within the same gear). Numbers are approximations, I don't remember actual numbers, bu this is what is happening.
30=2500 rpm
35=3000 rpm
35-37= 2800 rpm
37-40= 3000 rpm
40-45= 3200 rpm

And good luck. Keep us updated with your experience.

 
Rep Power: 256

did that happen before you added the new fluid ??? the only thing that scares me is the lower viscosity of the new fluid on my used trans. i will keep updates.

 
Rep Power: 0

That has been happening since I can remember. I got the car with 27000 miles. i have 63xxx now. It did get slightly better but not much. I am going to do another drain and refill at the next oil change.

 
Rep Power: 256

is your car doing this ??? wtf i guess you can't imbed youtube video anymore ??? search ''slipping tranny 2'' on youtube.

 
Rep Power: 0

[autostream]http://autostream.com/ibcivicforums/?page_type=firebirdplayerthumbnail&framepage=107&t ransactionid=1303869210-1732305886&posted_by=mvanbv00_www.civicforums.com& youtube_video_id=vJRiq2xxWxo[/autostream]
More like that, except when the mustang stays at 4k rpm in second mine goes down 200 rpm or so, then back up. it only happens when I accelerate moderately. Not flooring it or granny driving, just normal acceleration.

 
Rep Power: 313

Good luck man... considering a manual swap if the tranny goes?

 
Rep Power: 256

hell no if the trans goes ill burn it.

 
Rep Power: 284

Best response I've ever heard to trans problems lol

 
Rep Power: 0

I thought the viscosity was higher in this newer formula. I read on the back it was but that was back in mid march I might be brain-farting.

I got the dw1 in my AT as well. I figure its a matter of when, not if....

 
Rep Power: 256

nah im reading it rite now it says ''lower viscosity for better gas mileage''. i do however have a single quart of old fluid i forgot i had so im going to use that with the new stuff then the next change go full synthetic.

 
Rep Power: 352

winning.

 
Rep Power: 256

today i finally did the switch over i added 2 bottles of the new stuff and one bottle of the old fluid . it seems to be shifting normally will see how it does down the road.

 
Rep Power: 191

I think you should have tossed the Z1 and gone with DW1 only , I've been going on thousands of miles with no negative change in shifting performance or transmission behavior (after two drain and fills, aka 70% DW1).

Here are my arguments (beliefs) in favor of DW1 being safe (same title, but two different posts):
https://www.civicforums.com/forums/1...ml#post4539093
https://www.civicforums.com/forums/1...ml#post4539391

 
Rep Power: 256

well i had one extra bottle left that couldn't be returned mixing them won't do anything i mean the fluid stuck in the converter is still the old stuff i just did one drain and fill not a complete flush. my next drain will be straight synthetic stuff.

 
Rep Power: 313

HAHAHA good answer... Before you burn it send me some parts though.