Automatic Transmission Reliability..

any reputable/decent prices out there i should know about? just trying to get the best deal here. thanks Inaccurate
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and how do you mix the fluids....do you just pour 2qts of one stuff and 1 qt of the other into the tranny ?
you sure you dont have to churn it for a minute or 2 ?
you sure you dont have to churn it for a minute or 2 ?
RedLine Website (click here)
Some people have had luck with ebay.

Yes. This is the one that I was referring to... The "Synthetic ATF Multi-vehicle formula". I used the "Synthetic ATF Multi-vehicle formula" for the past 39,786 miles. However, I now recommend and use the RedLine Racing ATF.
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hey Innacurate....how often do you do a tranny flush with the redline ? or just a drain and refill every other oil change ? also am at 135K....and going to make the switch from Z1 to redline....do you see any drawbacks of this ?
But on the other hand, it is still probably better than the Z1.
I can only recommend Mobil1 Synthetic, Amsoil, or RedLine with a clear conscious.
Last edited by Inaccurate; Aug 15, 2010 at 12:54 AM.
In the past, this was every 3k miles when I used Mobil1 engine oil.
Now I use RedLine engine oil (and RedLine ATF too). With the RedLine engine oil, I extended my engine oil changes to 6k. So, I now do a single atf drain/refill once every 6k.
I see no drawbacks to you switching from Z1 to RedLine ATF. I recommend it highly.
A single drain and refill every time I do an engine oil change.
In the past, this was every 3k miles when I used Mobil1 engine oil.
Now I use RedLine engine oil (and RedLine ATF too). With the RedLine engine oil, I extended my engine oil changes to 6k. So, I now do a single atf drain/refill once every 6k.
I see no drawbacks to you switching from Z1 to RedLine ATF. I recommend it highly.
In the past, this was every 3k miles when I used Mobil1 engine oil.
Now I use RedLine engine oil (and RedLine ATF too). With the RedLine engine oil, I extended my engine oil changes to 6k. So, I now do a single atf drain/refill once every 6k.
I see no drawbacks to you switching from Z1 to RedLine ATF. I recommend it highly.
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A single drain and refill every time I do an engine oil change.
In the past, this was every 3k miles when I used Mobil1 engine oil.
Now I use RedLine engine oil (and RedLine ATF too). With the RedLine engine oil, I extended my engine oil changes to 6k. So, I now do a single atf drain/refill once every 6k.
I see no drawbacks to you switching from Z1 to RedLine ATF. I recommend it highly.
In the past, this was every 3k miles when I used Mobil1 engine oil.
Now I use RedLine engine oil (and RedLine ATF too). With the RedLine engine oil, I extended my engine oil changes to 6k. So, I now do a single atf drain/refill once every 6k.
I see no drawbacks to you switching from Z1 to RedLine ATF. I recommend it highly.
and i was thinking of doing a 1x3 Redline every 15K miles after I throw in 3x3 flush next weekend....any recommendations with respect to miles and 1x3 drain refill?
1700 post LMAO !!!
Keep in mind the engine oil change interval is not just based on what the oil will take. It's also based on the contaminate load.
With Redline ATF and especially their "racing" fluid, you can go much longer between changes. I'm going back to 50,000 mile 3x3 changes or possibly 20,000 mile 1x3 changes which is still ultra conservative with this fluid.
From my experience it holds up for a very long time and there's so little wear on the magnet that I don't see a need to change it very often at all. In reality you could probably get away with 100,000 mile intervals but I'm pretty OCD.
With Redline ATF and especially their "racing" fluid, you can go much longer between changes. I'm going back to 50,000 mile 3x3 changes or possibly 20,000 mile 1x3 changes which is still ultra conservative with this fluid.
From my experience it holds up for a very long time and there's so little wear on the magnet that I don't see a need to change it very often at all. In reality you could probably get away with 100,000 mile intervals but I'm pretty OCD.
This is not true. Perhaps you did not mean it the way this sounded. I just want to point it out for other readers in case other readers get the wrong idea.
Once the synthetic ATF (Amsoil or RedLine) in your trans via a 3x3, no further maintenance is required. I do a single drain/refill every time I do an engine oil change because I am obsessive compulsive (OPD).
IHC did an excellent job of stating this too in his post above.
Regarding the timing of the drain/refills -
You will need to do multiple drain/refills. The timing between each drain/refill is not critical. Just do what is convenient for you. With each successive drain/refill, you will be reaching a higher percentage of that fluid that you are adding, and a less percentage of the previous fluid.
It is up to you to decide how quickly you wish to reach your goal. Also, it is up to you to decide what percentage of the new fluid is acceptable to you. Nearly everyone agrees that doing three drain/refills is good enough, which will give you 78% of new fluid and 22% old fluid.
Check this linked thread below to learn why you must do multiple drain/refills -
The RR Journals: ATF drain and refill 3G Garage #C-012 (click here)
Once the synthetic ATF (Amsoil or RedLine) in your trans via a 3x3, no further maintenance is required. I do a single drain/refill every time I do an engine oil change because I am obsessive compulsive (OPD).
IHC did an excellent job of stating this too in his post above.
Regarding the timing of the drain/refills -
You will need to do multiple drain/refills. The timing between each drain/refill is not critical. Just do what is convenient for you. With each successive drain/refill, you will be reaching a higher percentage of that fluid that you are adding, and a less percentage of the previous fluid.
It is up to you to decide how quickly you wish to reach your goal. Also, it is up to you to decide what percentage of the new fluid is acceptable to you. Nearly everyone agrees that doing three drain/refills is good enough, which will give you 78% of new fluid and 22% old fluid.
Check this linked thread below to learn why you must do multiple drain/refills -
The RR Journals: ATF drain and refill 3G Garage #C-012 (click here)
For you, you can do the generally accepted 3 drain/refills with either Amsoil Racing ATF or RedLine Racing ATF.
Vp55, yes I recommend that you try the RedLine Racing ATF. The RedLine Racing ATF will produce much quicker shifts. The elimination of your “hard shifts” will be a judgment call on your part. Because I do not know what you consider as a hard shift, I will not make any promises that you will not find the non oem ATF also hard shifting. But, I guarantee you that the shifts with the RedLine Racing ATF will be extremely quick.
Last edited by Inaccurate; Aug 15, 2010 at 10:30 PM.
If I was to purchase a new TL tomorrow, I would drive it straight home from the dealership and perform at least 5 consecutive drain/refills with a 10 minutes drive between each drain/refill. I would use RedLine Racing ATF.
For you, you can do the generally accepted 3 drain/refills with either Amsoil Racing ATF or RedLine Racing ATF.
Vp55, yes I recommend that you try the RedLine Racing ATF. The RedLine Racing ATF will produce much quicker shifts. The elimination of your “hard shifts” will be a judgment call on your part. Because I do not know what you consider as a hard shift, I will not make any promises that you will not find the non oem ATF also hard shifting. But, I guarantee you that the shifts with the RedLine Racing ATF will be extremely quick.
For you, you can do the generally accepted 3 drain/refills with either Amsoil Racing ATF or RedLine Racing ATF.
Vp55, yes I recommend that you try the RedLine Racing ATF. The RedLine Racing ATF will produce much quicker shifts. The elimination of your “hard shifts” will be a judgment call on your part. Because I do not know what you consider as a hard shift, I will not make any promises that you will not find the non oem ATF also hard shifting. But, I guarantee you that the shifts with the RedLine Racing ATF will be extremely quick.
What I mean by "hard shifts" is at normal driving (shifting under 3500rpm) you can feel it shifting and it is a slight jerk. It shifts perfectly into second gear but the other gears I can actually notice it shifted if that makes sense.
I am going to order the Redline ATF as recommended by you and other members. Thanks for the quick response.
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call me crazy but i would hate draining 3QTS of new fluid in less than 10 minutes....so i like the 1x3 drain refill every 15K miles....i would certainly do 3x3 or a 4x3 the first time around to get all the old fluid out.....but then 1x3 it is
I have 72k miles on my 04 TL. I bought the car with 47k miles on it last summer, and have not yet changed the tranny oil..."shame on me"..
can someone please help me out with the proper way that i should drain the tranny and replace it? i keep reading on this 3x3..anyone that can write up an explanation of what it is and how to do it, is greatly appreciated.
can someone please help me out with the proper way that i should drain the tranny and replace it? i keep reading on this 3x3..anyone that can write up an explanation of what it is and how to do it, is greatly appreciated.
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If I was to purchase a new TL tomorrow, I would drive it straight home from the dealership and perform at least 5 consecutive drain/refills with a 10 minutes drive between each drain/refill. I would use RedLine Racing ATF.
For you, you can do the generally accepted 3 drain/refills with either Amsoil Racing ATF or RedLine Racing ATF.
Vp55, yes I recommend that you try the RedLine Racing ATF. The RedLine Racing ATF will produce much quicker shifts. The elimination of your “hard shifts” will be a judgment call on your part. Because I do not know what you consider as a hard shift, I will not make any promises that you will not find the non oem ATF also hard shifting. But, I guarantee you that the shifts with the RedLine Racing ATF will be extremely quick.
For you, you can do the generally accepted 3 drain/refills with either Amsoil Racing ATF or RedLine Racing ATF.
Vp55, yes I recommend that you try the RedLine Racing ATF. The RedLine Racing ATF will produce much quicker shifts. The elimination of your “hard shifts” will be a judgment call on your part. Because I do not know what you consider as a hard shift, I will not make any promises that you will not find the non oem ATF also hard shifting. But, I guarantee you that the shifts with the RedLine Racing ATF will be extremely quick.
I have already done a 3X3 with Redline D4/ both switches and trans filter. I was going to do a 3X3 every 15,000 but after reading what Inaccurate & I hate cars change theirs at I guess I won't.
I will just do a 1X3 every oil change (5000 miles) I'm pretty OCD too.
I will just do a 1X3 every oil change (5000 miles) I'm pretty OCD too.
I actually feel guilty telling people to change that often with a good fluid. I'm very OCD but that fluid should go an easy 50K and probably a lot more.
I redid my pressure sensor switches and finally switched to Amsoil ATF and the car shifts noticeably faster and harder. To answer the OPs question, if you take care of the transmission and are as anal as we all are on this board, it should last a while
How about mixing Redline D4 and Redline Racing ATF? Say 5 qts of one and 4 of the other? I did a 3x3 with OEM Z1 7K miles ago but I wouldnt mind switching to Redline to protect my tranny.
^ Mixing RedLine D4 and RedLine Racing ATF is perfectly ok. Why are you thinking of mixing them? The trans will have substantially less wear when using straight RedLine Racing ATF than the D4. Thus, using a mixture will offer only half (as a figure of speech) of the wear prevention.
^ Mixing RedLine D4 and RedLine Racing ATF is perfectly ok. Why are you thinking of mixing them? The trans will have substantially less wear when using straight RedLine Racing ATF than the D4. Thus, using a mixture will offer only half (as a figure of speech) of the wear prevention.
Understandable. I sort of thought this was the reason. 
In this case, mixing would be a great way to gain confidence with using the Racing ATF. Later after you feel more confidant, you have the option of introducing my Racing ATF.

In this case, mixing would be a great way to gain confidence with using the Racing ATF. Later after you feel more confidant, you have the option of introducing my Racing ATF.
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Originally Posted by Inaccurate
For 3 refills, you would need 6 RedLine Racing (PN 30304) + 3 Lightweight Racing (PN 30314). Or, 9 qts total.
so should i run straight racing fluid or mix it ???
Ya know it sorta feels like an improvement but it could be my mind playin with me cause of the way the fluid looked when I changed it plus I also did a oil change at the same time so it's hard to really say. I do plan on changing it again before winter hits.
Can you feel the car shifting any faster?


