Transmission Fluid change?
Thread Starter
Drifting
Joined: Nov 2004
Posts: 1,742
Likes: 407
From: Naples, Florida
Transmission Fluid change?
Dear Forum members:
I've seen alot of conversation on the Forum about the use of Amsoil products. Specifically, reference was made to changing the transmission and differential fluids. They mentioned that the benefit of using Amsoil was a quieter and longer lasting transmission. I have a 2002 coupe (17,000 miles) with a manual transmission. My questions are:
I've seen alot of conversation on the Forum about the use of Amsoil products. Specifically, reference was made to changing the transmission and differential fluids. They mentioned that the benefit of using Amsoil was a quieter and longer lasting transmission. I have a 2002 coupe (17,000 miles) with a manual transmission. My questions are:
- Which specific fluids do I use?
- How many other Forum members have made this change?
- What have your results been?
Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
This should be an interesting thread.
In about 4 weeks, my Z06 will be going through its spring upgrades. As part of the upgrades, I am having installed a G-Force Transmission 9310 mainshaft, steel 3-4 shift fork, G-
Force Transmission 1-2, 3-4, 5-6 billet slider hub keys, and the ratio of 6th gear in my MN6 trans changed from 0.50:1 to 0.563:1. The shop that is doing the work is Liberty Gear. They manufacture spur-type transmission gears for Pratt and Miller's C5R and C6R racing transmissions.
As part of my trans upgrade they suggested that I have them install Castrol Syntorq LT transmission fluid. This is a manual transmission fluid that Castrol developed at the request of Chrysler for the Viper's 6-speed trans. Both GM - part number 12346190 and Chrysler - part number 4637579 have it as a service part. It is expensive. The best place I have found to purchase it is at QUAD 4 x 4, LLP in Roberts, Montana - (406) 446-2427 - http://www.quad4x4.com at $25 for two quarts, plus shipping.
Good luck with your decision.
.
In about 4 weeks, my Z06 will be going through its spring upgrades. As part of the upgrades, I am having installed a G-Force Transmission 9310 mainshaft, steel 3-4 shift fork, G-
Force Transmission 1-2, 3-4, 5-6 billet slider hub keys, and the ratio of 6th gear in my MN6 trans changed from 0.50:1 to 0.563:1. The shop that is doing the work is Liberty Gear. They manufacture spur-type transmission gears for Pratt and Miller's C5R and C6R racing transmissions.
As part of my trans upgrade they suggested that I have them install Castrol Syntorq LT transmission fluid. This is a manual transmission fluid that Castrol developed at the request of Chrysler for the Viper's 6-speed trans. Both GM - part number 12346190 and Chrysler - part number 4637579 have it as a service part. It is expensive. The best place I have found to purchase it is at QUAD 4 x 4, LLP in Roberts, Montana - (406) 446-2427 - http://www.quad4x4.com at $25 for two quarts, plus shipping.
Good luck with your decision.
.
Last edited by Pumba; Apr 2, 2005 at 08:48 AM.
Safety Car
Joined: Jan 2005
Posts: 4,799
Likes: 0
From: Lake Ridge VA
Originally Posted by lavla
[*]Which specific fluids do I use?[*]How many other Forum members have made this change?[*]What have your results been?
1) For the transmission I used Mobile 1 ATF (4 quarts) and for the differential I used Mobile 1 75W-90 (2 quarts) + GM Additive (1 bottle)
2) I believe numerous members have made this change.
3) I didn't notice any change from the differential fluid change (didn't expect to.) I did have a noticeable change from my new transmission fluid. I notice my shifts are slightly smoother, most likely because it was never changed or changed a long time ago.
Definitely worth it for the mechanical necessity and peace of mine...especially if you have a good mechanic who charges you fairly
Race Director
Joined: Jan 2002
Posts: 19,557
Likes: 1,470
From: I love you & miss you Linda
2017 C7 of the Year Finalist
St. Jude Contributor
I also have an 02 coupe, but with 13000 on the clock.
I changed the differential and trans with Royal Purple Synthetic fluids at 12000 miles.
Max-ATF in the trans http://www.royalpurple.com/prodsa/matfa.html
Max-Gear in the differential http://www.royalpurple.com/prodsa/mgeara.html
The car is quieter and smoother since.
http://www.royalpurple.com/
I changed the differential and trans with Royal Purple Synthetic fluids at 12000 miles.
Max-ATF in the trans http://www.royalpurple.com/prodsa/matfa.html
Max-Gear in the differential http://www.royalpurple.com/prodsa/mgeara.html
The car is quieter and smoother since.
http://www.royalpurple.com/
Le Mans Master
Joined: Aug 2002
Posts: 8,222
Likes: 0
From: Norfolk VA
Originally Posted by Glennm27
I also have an 02 coupe, but with 13000 on the clock.
I changed the differential and trans with Royal Purple Synthetic fluids at 12000 miles.
Max-ATF in the trans http://www.royalpurple.com/prodsa/matfa.html
Max-Gear in the differential http://www.royalpurple.com/prodsa/mgeara.html
The car is quieter and smoother since.
http://www.royalpurple.com/
I changed the differential and trans with Royal Purple Synthetic fluids at 12000 miles.
Max-ATF in the trans http://www.royalpurple.com/prodsa/matfa.html
Max-Gear in the differential http://www.royalpurple.com/prodsa/mgeara.html
The car is quieter and smoother since.
http://www.royalpurple.com/
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