lowlife9

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.

MindBomber

Good luck, keep us updated please.

mvanbv00

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.

lowlife9

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.

mvanbv00

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.

lowlife9

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

mvanbv00

[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.

BlueEM2

iTrader: (1)

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

lowlife9

hell no if the trans goes ill burn it.

MindBomber

Best response I've ever heard to trans problems lol

7genmarathon

iTrader: (1)

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....

lowlife9

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.

sl33pyriceboi

iTrader: (3)

winning.

lowlife9

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.

green01civic

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

lowlife9

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.

BlueEM2

iTrader: (1)

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