Changing fluid in MN6
Instructor
Joined: Jul 2001
Posts: 133
Likes: 2
From: Winsdor ON
The drain is on the passenger side of the transmission, down low, and a few inches behind the fill plug. My tranny sometimes didn't want to go into first or second, but after replacing the fluid with Mobil 1, it shifts much better. I think the manual had the capacity listed as "capacity -5 quarts ---overhaul " but I only was able to replace about 3 quarts. You will need a pump to get the fluid into the fill hole.
Steve
Steve
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Originally Posted by vetteman9368
where is the drain plug? how much fluid does it hold
__________________
C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Burning Brakes
Joined: Nov 2004
Posts: 993
Likes: 0
From: PA
To properly change the fluid in the MN6, it should be flushed. This will take about 12 quarts... and the proper flush machine. If you live near a dealer you can TRUST, let them do it. It will be a much better job than a drain and re-fill at home.
Thread Starter
Team Owner
Joined: Dec 2000
Posts: 27,897
Likes: 9
From: I have no tolerence for liberals and fools, but sometimes i repeat myself
CI 3-5-7-8-9 Veteran
St. Jude Donor '08
Originally Posted by Silver98
To properly change the fluid in the MN6, it should be flushed. This will take about 12 quarts... and the proper flush machine. If you live near a dealer you can TRUST, let them do it. It will be a much better job than a drain and re-fill at home.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Instructor
Joined: Aug 2004
Posts: 151
Likes: 0
From: San Diego California
St. Jude Donor '06-'07
Originally Posted by Silver98
To properly change the fluid in the MN6, it should be flushed. This will take about 12 quarts... and the proper flush machine. If you live near a dealer you can TRUST, let them do it. It will be a much better job than a drain and re-fill at home.
I was told you can not FLUSH a Manual Transmission you only flush autos.. is this incorrect? And if someone said they are flushing your manual transmission with a machine there are full of
.. Expert pls.. advice.
Burning Brakes
Joined: Mar 2005
Posts: 1,227
Likes: 15
St. Jude Donor '06
97 service manual says:
MN6 capacity is 3.75 quarts
It says the A4 requires 12 quarts for a flush.
You dont flush a MN6..you simply remove the drain plug and let it drain. You refill until it flows out of the fill hole...should be about 3.5 quarts...
Of course you have to be level for it to properly drain...
MN6 capacity is 3.75 quarts
It says the A4 requires 12 quarts for a flush.
You dont flush a MN6..you simply remove the drain plug and let it drain. You refill until it flows out of the fill hole...should be about 3.5 quarts...
Of course you have to be level for it to properly drain...
Former Law Dawg Moderator
Joined: Jan 2005
Posts: 29,434
Likes: 96
From: Eads, Tennessee
CF St. Jude Co-Organizer
St. Jude Donor '05 thru '24
Originally Posted by Stealthy4
97 service manual says:
MN6 capacity is 3.75 quarts
It says the A4 requires 12 quarts for a flush.
You dont flush a MN6..you simply remove the drain plug and let it drain. You refill until it flows out of the fill hole...should be about 3.5 quarts...
Of course you have to be level for it to properly drain...
MN6 capacity is 3.75 quarts
It says the A4 requires 12 quarts for a flush.
You dont flush a MN6..you simply remove the drain plug and let it drain. You refill until it flows out of the fill hole...should be about 3.5 quarts...
Of course you have to be level for it to properly drain...
For a manual tranny you'll only be able to get a little over 3.5 quarts drained and refill. The above member who stated 12 quarts is wrong regarding MN6. He must have the MN6 and autos confused.
Former Law Dawg Moderator
Joined: Jan 2005
Posts: 29,434
Likes: 96
From: Eads, Tennessee
CF St. Jude Co-Organizer
St. Jude Donor '05 thru '24
I thought that's what you were talking about above. Again, Amsoil has the additive in it. It's called Amsoil Severe Gear.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Originally Posted by Silver98
To properly change the fluid in the MN6, it should be flushed. This will take about 12 quarts... and the proper flush machine.
Since it was mentioned, the differential takes 1.7 quarts of synthetic 75w90 gear lube with 4 oz of friction modifier. As a note, many differential fluids come with the friction modifier in them and adding extra is not normally needed.
The two applicable AMSOIL products:
Manual and Automatic Transmission on C5s: AMSOIL ATF
Differential Fluid on C5s: AMSOIL Severe Gear Extreme Pressure Synthetic 75w90 (comes with friction modifier in it)
where are the drain plugs and fill plugs?
Race Director
Joined: Mar 2001
Posts: 11,405
Likes: 26
From: Whippany NJ
CI 6-7-8-9 Veteran
St. Jude Donor '08-'09
NCM Sinkhole Donor
Originally Posted by Subdriver
Differential Fluid on C5s: AMSOIL Severe Gear Extreme Pressure Synthetic 75w90 (comes with friction modifier in it)
Team Owner
Joined: Mar 2001
Posts: 25,889
Likes: 7
From: Virginia Beach
CI 3-5-6-7-8 Veteran
Thank you Brad (subdriver) for stepping up and clearing up the misinfo... guys if you aren't 100% sure what you're talking about in a tech forum please don't respond, spreading mininfo is not a good thing.
I run full Amsoil fluids in my car, great stuff!
I run full Amsoil fluids in my car, great stuff!
