5 Speed Trans Fluid Change - Page 2 - 2003-04 Mach 1 Registry Owners Club

ASH302 · 04-22-2010, 05:33 AM

Quote:

Originally Posted by muzman

maybe, but he has already orded the "good oil" for the operation tomorrow morning, cant wait.

sounds good, just gave a suggestion.

muzman · 04-22-2010, 07:17 PM

well did the GBox oil change we use Pernrite synthetic ATF blend due to unavailability of mobil 1. It has a dexron and mercon rating and says for mustangs. we also used the lucas trans fix and the gear box now sounds noisier! Dont know what to do.

Further to this I called FORD in NZ they said to put in 3.1 Litres, so we put in about 100-200 more mills, seems to be shifting a bit better and a bit quieter, perhaps just need to give it some time to bed in. Am still going to look for some Mobil 1.

ASH302 · 04-23-2010, 01:27 AM

Quote:

Originally Posted by muzman

well did the GBox oil change we use Pernrite synthetic ATF blend due to unavailability of mobil 1. It has a dexron and mercon rating and says for mustangs. we also used the lucas trans fix and the gear box now sounds noisier! Dont know what to do.

Further to this I called FORD in NZ they said to put in 3.1 Litres, so we put in about 100-200 more mills, seems to be shifting a bit better and a bit quieter, perhaps just need to give it some time to bed in. Am still going to look for some Mobil 1.

When i used Royal Purple in mine, it shifted better, no noise added on and felt alittle better. don't know what to tell you. i didn't use ATF in mine either

muzman · 04-23-2010, 01:36 AM

Quote:

Originally Posted by 460hpmach1

When i used Royal Purple in mine, it shifted better, no noise added on and felt alittle better. don't know what to tell you. i didn't use ATF in mine either

Ill keep an eye open for some of this when I go hunting for the "good oil", the process is quite easy as per this sticky, esp when you have a mechanic mate with a hoist and a pump :THUMBSUP:

ASH302 · 04-23-2010, 06:54 AM

sounds good, hope you get everything good to go. :THUMBSUP:

killn imports · 02-28-2011, 01:44 AM

Hay evryone i have been doing alil homework to solve my slight grinding into gears that happend after it started getting warmer outside. Suspect eather wrong or contaminated fluid was installed when i bought the car 2 months ageo and the dealer replaced a head and i saw all the fluids bing reused. Cheep basterds!! im just getting to replacing evrything! gm syncromesh fluid part number 12345349 a great fluid that is a way better fluid then atf but is about $15.00 a qt!! Pennzoil Synchromesh Manual Transmission Fluid
is same fluid but about $8.00 a qt.

Midnight · 04-01-2011, 09:31 PM

I did this today.Thanks for the write up help alot.

SHAKEN 661 · 04-19-2011, 02:43 PM

Nice write up! I will be doing mine here soon!

Mac3 · 05-17-2011, 12:08 AM

At what mileage should you change fluid? Im over 30K and recently my shifts have not felt as smooth, should I change fluid?

Mach828 · 05-17-2011, 05:19 PM

Quote:

Originally Posted by Mac3

At what mileage should you change fluid? Im over 30K and recently my shifts have not felt as smooth, should I change fluid?

For many Ford cars I've seen factory maintenance schedules that says every 30k miles.

Best things to do to help with shifts:

1. Short throw shifter - MGW is amazing
2. Firewall adjuster and quadrant
3. Mobil 1 Synthetic ATF with Lucas Trans Fix (total fill amount is 3.0L)

WNTAMACH1 · 05-17-2011, 09:38 PM

Give me some fluid options please? Anyone have the part number for the Lucas and if it's REALLY good to add. Thanks! Great write up.

Mac3 · 05-24-2011, 02:25 PM

how hard are the firewall adjusters to install?

Mach828 · 05-24-2011, 03:27 PM

You need a really small drill. If you have a small drill it will make your life easier.

If you don't have a drill that can drill at least 2 holes behind the driverside valve cover, I wouldn't even attempt the install.

If your a small guy with smaller hands it will be much easier.

WNTAMACH1 · 05-24-2011, 10:41 PM

Overall it's pretty easy. Follow the Instructions.

04-22-2010, 07:17 PM	#27
muzman Mach 1 enthusiast Join Date: Mar 2004 Location: Auckland New Zealand Posts: 1,540	Re: 5 Speed Trans Fluid Change well did the GBox oil change we use Pernrite synthetic ATF blend due to unavailability of mobil 1. It has a dexron and mercon rating and says for mustangs. we also used the lucas trans fix and the gear box now sounds noisier! Dont know what to do. Further to this I called FORD in NZ they said to put in 3.1 Litres, so we put in about 100-200 more mills, seems to be shifting a bit better and a bit quieter, perhaps just need to give it some time to bed in. Am still going to look for some Mobil 1. __________________ muzman,Red 03 Mach1,5 speed IUP,Born: 14 May 2003, K&N Drop In Air filter, Mach1Canuck Special IAC restrictor plate, Black Bumper mustang letters, MRT H Pipe and magnaflow cat back, MRT Chrome exhaust extensions,Mach 1 Floor Matts, bought new 2003 first registered for road use in 2010. ___________________ 1969 351w 4v Mach 1, Red, 4 speed toploader SOLD Feb 2007 2000GT Red , Auto Right Hand Drive sold 2004. Last edited by muzman; 04-22-2010 at 11:49 PM. Reason: update on info posted previously

04-23-2010, 06:54 AM	#30
ASH302 Soldier for Christ Join Date: May 2009 Location: Willis, TX at The Daddy ASh Ranch Posts: 30,596	Re: 5 Speed Trans Fluid Change sounds good, hope you get everything good to go. :THUMBSUP: __________________ 2001 lazer red v6 Mustang coupe sold in Aug 2006 2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012 2013 grey 6 speed coupe GT Mustang Sold in Feb 2014 2013 RED Dodge Charger R/T Sold Nov 2014 2002 custom Blue 02 Auto Trans AM Sold June 2015 1998 Cobra Black Sold summer 2016 Current 2009 Ford F350 FX4 March 2017 (work truck) 2003 OW 5.0 Mach 1 Aug 2020 ASh

02-28-2011, 01:44 AM	#31
killn imports Registered User Join Date: Dec 2010 Location: glen ellyn il Posts: 3	Re: 5 Speed Trans Fluid Change Hay evryone i have been doing alil homework to solve my slight grinding into gears that happend after it started getting warmer outside. Suspect eather wrong or contaminated fluid was installed when i bought the car 2 months ageo and the dealer replaced a head and i saw all the fluids bing reused. Cheep basterds!! im just getting to replacing evrything! gm syncromesh fluid part number 12345349 a great fluid that is a way better fluid then atf but is about $15.00 a qt!! Pennzoil Synchromesh Manual Transmission Fluid is same fluid but about $8.00 a qt.

04-01-2011, 09:31 PM	#32
Midnight Registered User Join Date: May 2003 Location: Arlington,Tx Posts: 476	Re: 5 Speed Trans Fluid Change I did this today.Thanks for the write up help alot.

04-19-2011, 02:43 PM	#33
SHAKEN 661 "Stream-line Butterfly" Join Date: Jun 2005 Location: Where its summer 3 months out of the year, PA Posts: 690	Re: 5 Speed Trans Fluid Change Nice write up! I will be doing mine here soon! __________________ 03 TR Cobra

05-17-2011, 12:08 AM	#34
Mac3 Guest Join Date: May 2011 Location: FL Posts: 45	Re: 5 Speed Trans Fluid Change At what mileage should you change fluid? Im over 30K and recently my shifts have not felt as smooth, should I change fluid?

05-17-2011, 09:38 PM	#36
WNTAMACH1 WNTAMACH1 Join Date: Dec 2008 Location: New Orleans, LA Posts: 2,394	Re: 5 Speed Trans Fluid Change Give me some fluid options please? Anyone have the part number for the Lucas and if it's REALLY good to add. Thanks! Great write up. __________________ 2004 Ford Mustang Mach 1-315 RWHP/ 336 RWTQ 2013 Ford Mustang GT 5.0 Auto- 421/406 SOLD 2013 Ford Taurus SHO PP - Daily Driver

05-24-2011, 02:25 PM	#37
Mac3 Guest Join Date: May 2011 Location: FL Posts: 45	Re: 5 Speed Trans Fluid Change how hard are the firewall adjusters to install?

05-24-2011, 03:27 PM	#38
Mach828 Dark Knight Join Date: Nov 2009 Location: Albuquerque, NM Posts: 5,759	Re: 5 Speed Trans Fluid Change You need a really small drill. If you have a small drill it will make your life easier. If you don't have a drill that can drill at least 2 holes behind the driverside valve cover, I wouldn't even attempt the install. If your a small guy with smaller hands it will be much easier. __________________ Vortech V2 S-trim, E85, A2A Treadstone, Comp cams, built engine, full exhaust, built rear, built 4r70, more mods. Tuned by me with SCT Advantage

05-24-2011, 10:41 PM	#39
WNTAMACH1 WNTAMACH1 Join Date: Dec 2008 Location: New Orleans, LA Posts: 2,394	Re: 5 Speed Trans Fluid Change Overall it's pretty easy. Follow the Instructions. __________________ 2004 Ford Mustang Mach 1-315 RWHP/ 336 RWTQ 2013 Ford Mustang GT 5.0 Auto- 421/406 SOLD 2013 Ford Taurus SHO PP - Daily Driver

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