Trans question

BlackedOut04GT · March 15th, 2009, 03:34 PM

I have about 57k miles on my car and would like to change the trans fluid. If I pull the plug and drain it, how much would I have to put back in? Also is it better to go with Royal Purple of is there another brand out there thats at Autozone thats as good? My car is going on a mustang dyno this Sat. and I would to have it running and shifting smoothly.

Last thing. I pure it in from the top after takeing the shifter out right? Someone told me you don't have to do that with Fords but that doesn't sound right.

John's_stang · March 15th, 2009, 04:43 PM

put back in what it says.. mercon... use 3.5 qts.. if its a manual

John's_stang · March 15th, 2009, 04:44 PM

well i used 3.5 this weekend when i changed out my clutch.. i have t-45 tranny

mrsinister2424 · March 15th, 2009, 05:08 PM

I just changed it yesterday, used Mercon5. I would say don't even worry about changing it. Its a closed system. Unless you have some serious problems, the oil will look pretty new. 126k miles on the clock, and the oil looked just like the new stuff. Waste of time really..... unless you're just looking for a reason to piss with your car.

mrsinister2424 · March 15th, 2009, 05:10 PM

Also, you probably won't notice any bit of a difference in shifting with new fluid. And you need to buy a hand pump at your local auto store, and just pump it into the top drain plug hole, after you put the bottom one it. The haynes manual says to fill it until its level with the top plug.(3 quarts~6pints)

03gtfirered · March 15th, 2009, 05:20 PM

do you have a 3650? manual or auto? the 3650 takes 3.3qts of mercon 5. When i did mine i used 3qts mercon5 (it may say something about auto tranny but ignore it) and the other .3qts i used lucas stop slip additive. smoothed shifts out a lot. 3.3qts will not bring you level with the bottom of the top plug. its 1/2in down i think. take the shifter off its easier then pumping and less messy. its always good to change your fluid. i think its required at 60k but not a 100%. good luck

Doc8224 · March 15th, 2009, 06:21 PM

I use royal purple syncromesh in my 3650 and it woke great

wishIhada5.0 · March 15th, 2009, 06:59 PM

I might do this too...73k on the clock and its already laid up for the winter so what the hell lol

BlackedOut04GT · March 15th, 2009, 08:15 PM

yea it's a 3650 trans manual. I drive it year round and it's just starting to get to that point where I need to clean out all the fluids and change a few things.

BlackedOut04GT · March 15th, 2009, 08:20 PM

I did change out the trans fluid with Royal Purple. Seems to shift a little bit smoother, but I haven't really put it to a test yet. I checked with Autozone and a few other shops just to make sure nothin would go wrong. My internet went down on me right after I started this tread so I couldn't check to see what advice you guy where giveing me.

Side note. I found out one of the 4 bolts that holds my MGW shifter in had come loose. That was a fun surprise.

C0BRAK1LL3R · March 16th, 2009, 06:14 PM

I heard you can use like just regular autozone auto tranny fluid with a little of lucas oil stabilizer? Sounds crazy lol

BlackedOut04GT · March 17th, 2009, 07:31 AM

^ Not sure about that. The Royal Purple I put in works great now that I have been able to run it through all the gears a few times. Could be all in my head but I think it shifts a tad bit faster and easier now too. I guess I'll really find out just how good it is after I hit the track at end of April/start of May.

March 15th, 2009, 03:34 PM	#1
BlackedOut04GT Enthusiast 2004 Mustang GT 14.61@96.03 2.159 60' (Was my first/best pass. So far.) Join Date: Sep 2008 Location: Maynard, MA. Posts: 843	Trans question I have about 57k miles on my car and would like to change the trans fluid. If I pull the plug and drain it, how much would I have to put back in? Also is it better to go with Royal Purple of is there another brand out there thats at Autozone thats as good? My car is going on a mustang dyno this Sat. and I would to have it running and shifting smoothly. Last thing. I pure it in from the top after takeing the shifter out right? Someone told me you don't have to do that with Fords but that doesn't sound right. Last edited by BlackedOut04GT : March 15th, 2009 at 03:48 PM.

March 15th, 2009, 06:21 PM	#7
Doc8224 N/A 4v Guru 2003 Mach 1 Join Date: Oct 2007 Location: Ft. Hood,TX Posts: 3,286	I use royal purple syncromesh in my 3650 and it woke great __________________ Military Crew U.S. Army Aviation Apache's Lead The Way

March 15th, 2009, 06:59 PM	#8
wishIhada5.0 Hardcore Enthusiast 2002 GT, True Blue, Stick Join Date: Feb 2008 Location: About an hour east of Pittsburgh Posts: 2,292	I might do this too...73k on the clock and its already laid up for the winter so what the hell lol __________________ True blue crew founder/member #1 MM's late nite crew #4 The beast lives..KB FTMFW!!!!

March 16th, 2009, 06:14 PM	#11
C0BRAK1LL3R Regular Join Date: Feb 2009 Posts: 262	I heard you can use like just regular autozone auto tranny fluid with a little of lucas oil stabilizer? Sounds crazy lol __________________ 2000 GT JLT Shortram, Mac long tubes, Mac o/r H pipe, UPR k member kit, UPR Billet cc plates, Spec stage 2, steeda clutch quad. 1/8th mile-9.035, 1.980 60ft just flows. New time- 8.92, 2.28 60ft. Mods.

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March 15th, 2009, 04:43 PM	#2
John's_stang Regular Join Date: Aug 2008 Posts: 234	put back in what it says.. mercon... use 3.5 qts.. if its a manual

March 15th, 2009, 04:44 PM	#3
John's_stang Regular Join Date: Aug 2008 Posts: 234	well i used 3.5 this weekend when i changed out my clutch.. i have t-45 tranny

March 15th, 2009, 08:15 PM	#9
BlackedOut04GT Enthusiast 2004 Mustang GT 14.61@96.03 2.159 60' (Was my first/best pass. So far.) Join Date: Sep 2008 Location: Maynard, MA. Posts: 843	yea it's a 3650 trans manual. I drive it year round and it's just starting to get to that point where I need to clean out all the fluids and change a few things.

March 15th, 2009, 08:20 PM	#10
BlackedOut04GT Enthusiast 2004 Mustang GT 14.61@96.03 2.159 60' (Was my first/best pass. So far.) Join Date: Sep 2008 Location: Maynard, MA. Posts: 843	I did change out the trans fluid with Royal Purple. Seems to shift a little bit smoother, but I haven't really put it to a test yet. I checked with Autozone and a few other shops just to make sure nothin would go wrong. My internet went down on me right after I started this tread so I couldn't check to see what advice you guy where giveing me. Side note. I found out one of the 4 bolts that holds my MGW shifter in had come loose. That was a fun surprise.

March 17th, 2009, 07:31 AM	#12
BlackedOut04GT Enthusiast 2004 Mustang GT 14.61@96.03 2.159 60' (Was my first/best pass. So far.) Join Date: Sep 2008 Location: Maynard, MA. Posts: 843	^ Not sure about that. The Royal Purple I put in works great now that I have been able to run it through all the gears a few times. Could be all in my head but I think it shifts a tad bit faster and easier now too. I guess I'll really find out just how good it is after I hit the track at end of April/start of May.

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