Club Cobra - What is transmission fluid capacity for Tremec 5MT?

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What is transmission fluid capacity for Tremec 5MT?

I've been reading through my SPF owners manual and came across the original owner's notation re: transmission fluid capacity. The tranny is a Tremec TR-3550 or TKO (I'm not 100% sure yet). His notes call for 21 quarts of ATF Dexron Mercon III. 21 quarts!! Could this be correct?

About 3 quarts, fill it until it overflows. You're done.

Bob

Thanks guys.

I just managed to download the Tremec TR-3550/TKO service manual. It calls for 3 quarts.

Man, gotta wonder where this guy got 21 quarts from? Makes me doubt the rest of his notes somewhat, too.

So, does 7 quarts of 10W40 oil sound about right for a 351W/392 with functional oil cooler? It seems about right to me, but then I'm just a new owner.

I just did the trans fluid in a 3550. I purchased 3 quarts of Royal Purple (their GM Syncromesh equilvant) and used 2.75 qts. Be carefull which plugs you use to drain and fill. As I remember, the fill is on the passenger side and of course, the drain is on the bottom. Using the wrong fill plug will cause a bad day for you. Fill it till the trans fluid is equal to the fill hole opening with the car level. There are some specialized trans fluids that many people seem to like...Check out www.performanceunlimited.com/cobravalley
for on of the most popular additive. Regarding the engine oil capacity, the usual oil pans call for between 7 and 9 quarts. With the oil cooler and lines add maybe a quart...Isn't the dipstick calibrated? Keep in mind that you don't empty the cooler & their associated oil lines when you change your oil...If you have a Canton pan and a part number, you can get it's capacity...The SCOF owners website has info and hints on changing the trans fluid too. You need to register on the site to access the tech area files. www.performanceunlimited.com/scof/index.html
PM me for more info on SCOF or the trans/oil change...
There is also a important issue to check on the rear suspension...ASAP. It's covered on the above noted website...or once again PM me.

Hey SunDude:
The Tremec calls for GM Synchromesh (spelling?) fluid. I've been using Redline MTL with good results.

If you have an oil cooler you might want to consider a lighter oil, maybe 5W-30. There is a lot of hose and hardware to go through. Use the lightest oil that will give you the pressure you desire.

Bob

How often or when should you change the fluid for this tranny?

When i called tremec they said the synchromesh is a lifetime fill. The magnet is not built in to the bottom of the transmiison housing it is not a magnetized plug anymore.

Quote:

Originally Posted by Trueoo7 (Post 966503)

How often or when should you change the fluid for this tranny?

IMHO: Mobil1 Dextron III ATF works great and may be available more places for less $.