Automatic Transmission Service Questions
Thread Starter
Pro
Joined: Apr 2002
Posts: 625
Likes: 7
From: Fairfax, VA and Springfield, IL
St. Jude Donor '06
Automatic Transmission Service Questions
This is for a 98’ auto with 42,000 miles on the clock. It has never been raced but a Superchips program has been installed since it was almost new giving it firmer shifts at a higher RPM. I was thinking I should have the fluid changed. Am I correct? If so, what brand/type of fluid should I purchase and how many quarts will I need? Thanks!
Drifting
Joined: Oct 2004
Posts: 1,975
Likes: 9
From: "Philly" Pennsylvania
Originally Posted by ZBrink
This is for a 98’ auto with 42,000 miles on the clock. It has never been raced but a Superchips program has been installed since it was almost new giving it firmer shifts at a higher RPM. I was thinking I should have the fluid changed. Am I correct? If so, what brand/type of fluid should I purchase and how many quarts will I need? Thanks!
Le Mans Master
Joined: Nov 2002
Posts: 7,179
Likes: 2
From: Charlotte, NC
I like the results I've seen the the AMSOIL universal atf. I've used it in my vette and theresa's as well as many of my customers. And it will mix with dexron if you are looking to do this your self and are only dropping the pan and not a flush..
BTW:
If you are going to DIY I am taking 5 bucks off all trans filter kits we carry with the purchase of 6 qts of amsoil atf.
-=Rick
BTW:
If you are going to DIY I am taking 5 bucks off all trans filter kits we carry with the purchase of 6 qts of amsoil atf.
-=Rick
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
I'll second Rick's recommendation and suggest you take him up on his offer. The AMSOIL ATF meets the C5/Z06 manual and automatic transmission fluid requirement for a Dexron III fluid. I've been running this fluid in my car on the track for over two seasons now with no tranny issues. 
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C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Thread Starter
Pro
Joined: Apr 2002
Posts: 625
Likes: 7
From: Fairfax, VA and Springfield, IL
St. Jude Donor '06
I will not be doing this myself. Should I still go ahead and do it at this point in time? Also, is it okay to mix what's in the car from the factory with 4-5 quarts of AMSOIL ATF?
Team Owner
Joined: May 2004
Posts: 26,345
Likes: 232
From: SoCal
Originally Posted by Subdriver
I'll second Rick's recommendation and suggest you take him up on his offer. The AMSOIL ATF meets the C5/Z06 manual and automatic transmission fluid requirement for a Dexron III fluid. I've been running this fluid in my car on the track for over two seasons now with no tranny issues.
I still gotta call you for the Amsoil 10-40 (pretty sure thats the weight I will go with but still considering 5-40)
DH
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Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
Originally Posted by ZBrink
I will not be doing this myself. Should I still go ahead and do it at this point in time? Also, is it okay to mix what's in the car from the factory with 4-5 quarts of AMSOIL ATF?
The tranny is this car, whether auto or manual, gets very hot given how little airflow it has to cool it, and the extra heat it picks up from the exhausts being nestled right up next to it, and from the diff being bolted to it. Heat is really hard on fluids. Synthetic will hold up much better than the stock fluid in the conditions seen in our trannies.
Does the Amsoil hold up better to high heat in the A4 than Dextron??
I still gotta call you for the Amsoil 10-40 (pretty sure thats the weight I will go with but still considering 5-40)
I still gotta call you for the Amsoil 10-40 (pretty sure thats the weight I will go with but still considering 5-40)
Drop me a PM if you have any further questions regarding 5w40 vs 10w40 for track use.
Melting Slicks
Joined: Jan 2004
Posts: 2,284
Likes: 3
From: NW Chicago, IL/Clearwater Beach, FL
Originally Posted by screw991le
Dexron III, IMHO If you can find Dexron IV get it.
there saying the dextron VI for a A4 is the way to go.only a few dealerships have it so far and only found it in bulk.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Originally Posted by Dirty Howie
Will the dealer use Amsoil if I bring it or does the flushing use excess of the actual capacitiy of the trans?
DH
DH
The flush will take more fluid than the actual capacity of the tranny, though I'm not exactly sure how much more.
Team Owner
Joined: May 2004
Posts: 26,345
Likes: 232
From: SoCal
Well I wound up having my new Dewitts Radiator installed sooner than I had expected. And I wanted to have my tranny service at same time. So I had to run out to Pep Boys last nite to get fluids. I wound up getting the Mobile 1 ATF (Dextron V)....it took 6 quarts. Bottle said good to mix with ALL ATF.........I hope it was ok. I will be doing this every 6 months or so. Do you think some DexIII, Mobil and Amsoil ATF is ok.......... 
DH
DH
