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Fluid Check 100,000 Mile

1980 Views 17 Replies 7 Participants Last post by  bobstoy, 
jackfreeman09
Hello all,

I want to start by saying I've done a lot of research on this site so I'm pretty sure I know what I need for materials but I just wanted to verify. Below is a picture of the fluids I purchased today at cut rate auto parts to do a transmission filter change and differential fluid change. My car is an 3.6L 04 and it has 98k miles on it.



Starting from left to right:

First as you can see I have Mobil 1 synthetic gear lubricant, I have 2 quarts.

Next I have Super ATF transmission fluid. I purchased 7 quarts because I was told the reservoir holds 6.2.

Next is some KW knock'er loose penetrant. I just sprayed this on the nuts for the transmission pan.

Next is GM limited slip. Now I was unsure if i needed this but I was wondering that if I don't will it hurt anything? My diff makes a good amount of noise on acceleration but from what I'm told, all of our cars do.

Finally a T45 drive bit.

Also I have a fluid transfer pump so I can easily fill the reservoirs.


Now I Just wanted to know before I continue do i have all the correct fluids? I was told to get the differential plugs i need a 10mm allen wrench, which i have.

Lastly do i need to spray the caps for both the transmission and differential with the knock'er loose? I believe my transmission has never been serviced so I don't want to strip any bolts.

Please let me know what you think. I am following the diagrams linked below:

Transmission
http://www.cadillacforums.com/forum...-transmission-fluid-change-2.html#post2240103

Diff
http://www.cadillacfaq.com/faq/answers/difflube/index.html

Thank you in advance guys.
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jackfreeman09
Calgary03 said:
Don't put that fluid in your transmission. You NEED dexron 6!
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Why is that/what's the difference?
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jackfreeman09
So should I return the 7 quarts of fluid that I got?
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jackfreeman09
Also what about the limited slip fluid? I checked the spare tire cover and there is no writing or anything on it. Thank you for the replies.
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jackfreeman09
The bottle says "recommended for use in all domestic and import vehicles no longer under warranty where the OEM previously specified a GM DEXRON III or earlier generation DEXRON fluid"

It later says "do not use in automatic transmissions that require a GM DEXRON VI" and a couple other of fluids by ford. So what does this mean?

Is it worth it to spend the extra money and go buy some DEXRON VI?
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jackfreeman09
What about the limited slip? Should I use it?

I am really sketched out about using this fluid. I wish there was just a concrete yes or no answer because the more I look the more I keep seeing both sides of the argument.
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jackfreeman09
Sorry, to clarify I am sketched out about the ATF fluid. I'm going to have this car for a long time and I don't wanna wreck my tranny.
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jackfreeman09
One last question, do I need to use the knock'er loose on the plugs for the transmission and the diff? The new transmission filter did not come with new plugs so I don't want to strip the bolt. Thank you for all the feedback.
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