Transmission Fluid
Thread Starter
Intermediate
Joined: Dec 2009
Posts: 25
Likes: 0
From: San Antonio TX
Transmission Fluid
i recently purchased a 08, manual transmission, 21K. i just changed the motor oil out to Amsoil 5W-30. i searched the forum and found the recommended (staying w/Amsoil) diff fluid was the Severe Gear 75W90. However, for the transmission i see several opinions. is the ATF fine or should i consider something else. i live in San Antonio, the car is not my daily driver, and is only driven in good (although hot) weather. i don't plan on tracking or 1/4 'n.
Race Director
Joined: Sep 2000
Posts: 11,142
Likes: 1,913
From: Missouri City, TX
You will need to buy 4 qts for the transmission. It will actually take somewhere from 3-1/2 to 3-3/4 qt so don't be concerned if you can't get the entire 4 qts into the manual tranny.
Since you have the MN6 manual, the factory fill spec is DEXRON III which is an ATF. The AMSOIL ATF product is the DEX III recommended replacement product and that is what I use in my Z06 for the past nearly 25k miles. I too use AMSOIL at the engine and differential as well. Congratulations on choosing a superior product as many of us have chosen. If you do enough oil changes yourself, consider joining the AMSOIL Preferred Customer Program at $20/yr. It allows you to buy from the webstore at dealer cost which is ~$2.25/qt savings over retail pricing for the motor oil for example. ~$3/qt savings on Severe Gear.
Since you have the MN6 manual, the factory fill spec is DEXRON III which is an ATF. The AMSOIL ATF product is the DEX III recommended replacement product and that is what I use in my Z06 for the past nearly 25k miles. I too use AMSOIL at the engine and differential as well. Congratulations on choosing a superior product as many of us have chosen. If you do enough oil changes yourself, consider joining the AMSOIL Preferred Customer Program at $20/yr. It allows you to buy from the webstore at dealer cost which is ~$2.25/qt savings over retail pricing for the motor oil for example. ~$3/qt savings on Severe Gear.
Last edited by GOLD72; Apr 8, 2010 at 07:17 AM.
Race Director
Joined: Sep 2000
Posts: 11,142
Likes: 1,913
From: Missouri City, TX
For the standard differentials without cooler/circ pumps, you will need to buy 2 qts. The Z06 and ZR1 diffs will require purchase of 3 qts. In both cases, you will not be able to put the entire purchased quantity into the diff housings so don't be concerned.
Burning Brakes
Joined: Nov 2007
Posts: 1,083
Likes: 3
From: Buena Park CA
AmsOil is a fantastic synthetic. Go to their website, plug in your car data (year, model, etc.) and it will tell you everything you need to know about the oil, filters, etc. about your car.
http://www.amsoil.com/
http://www.amsoil.com/
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Team Owner
Joined: Dec 2002
Posts: 32,074
Likes: 296
From: San Francisco CA
Good choice
I just did the conversion of all fluids to Amsoil synthetic fluids including the power steering and anti-freeze.
I have not done the oil and oil filter because I have (3 cases) 3 years worth of Mobil One to use. I was using the UPF-44 oil filter but I have run out of them.
My other car is using Redline synthetic.
I just did the conversion of all fluids to Amsoil synthetic fluids including the power steering and anti-freeze.
I have not done the oil and oil filter because I have (3 cases) 3 years worth of Mobil One to use. I was using the UPF-44 oil filter but I have run out of them.
My other car is using Redline synthetic.
