Notices

c6 transmission fluid

Thread Tools
 
Search this Thread
 
Old Jan 20, 2010 | 12:48 AM
  #1  
Richards73's Avatar
Richards73
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 115
Likes: 0
From: Texas
c6 transmission fluid

My haynes repair manual told me to use dexron 3 and mercon automatic fluid but other people tell me type f
does anyone know which one is better use
 
Reply
Old Jan 20, 2010 | 12:57 AM
  #2  
brownfoot's Avatar
brownfoot
Senior User
Joined: Mar 2004
Posts: 448
Likes: 0
read your dipstick, it should say "Type F"
 
Reply
Old Jan 20, 2010 | 01:07 AM
  #3  
Richards73's Avatar
Richards73
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 115
Likes: 0
From: Texas
it says type f i didnt no if it was changed tho because ive herd to use the other and have been having problems with the transmission
 
Reply
Old Jan 20, 2010 | 04:54 AM
  #4  
brownfoot's Avatar
brownfoot
Senior User
Joined: Mar 2004
Posts: 448
Likes: 0
drop the pan, change the filter, and fill with type F
what problems are you having? does it not want to go when you first start and it is cold?
but once it warms-up it acts ok?
 
Reply
Old Jan 20, 2010 | 06:30 PM
  #5  
Richards73's Avatar
Richards73
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 115
Likes: 0
From: Texas
already serviced it
shifts hard and wants to stick in first gear when u first start driving
 
Reply
Old Jan 20, 2010 | 07:28 PM
  #6  
Danny Stroup's Avatar
Danny Stroup
Senior User
Joined: Oct 2009
Posts: 188
Likes: 1
From my online Chilton's manual:
Fluid Recommendations
  • C4 - Type F
  • C5 - Type H
  • C6 - 1976 Type F; 1977-86 Dexron®II
  • AOD - Dexron®II ATF
<!-- *** CONTENT VERSION: *** -->
 
Reply
Old Jan 20, 2010 | 08:10 PM
  #7  
brownfoot's Avatar
brownfoot
Senior User
Joined: Mar 2004
Posts: 448
Likes: 0
sounds like the valve body is dirty, or can be a symptom of DexronII fluid
 
Reply
Old Jan 20, 2010 | 09:06 PM
  #8  
Poison Oil Racing's Avatar
Poison Oil Racing
Posting Guru
Joined: Nov 2007
Posts: 1,305
Likes: 2
From: Montgomery, IL
Trans Fluid TSB

here is some info for you:

Ford Trans Fluid TSB
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-1

Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-2

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-3

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-4

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-5

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-6

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-7

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-8

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-9

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
Old Jan 20, 2010 | 09:50 PM
  #9  
Richards73's Avatar
Richards73
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 115
Likes: 0
From: Texas
i have type f fluid in there right now
thanks for the help it sounds like i shoukd stick with the type f fluid
 
Reply
Old Jan 20, 2010 | 09:56 PM
  #10  
Richards73's Avatar
Richards73
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 115
Likes: 0
From: Texas
sometimes it doesnt like to go untill its warmed up is that normal
 
Reply
Old Jan 21, 2010 | 12:27 AM
  #11  
brownfoot's Avatar
brownfoot
Senior User
Joined: Mar 2004
Posts: 448
Likes: 0
for an old transmission with a dirty valve body, yes
what did the pan look like when it was serviced, fluid clean and red or brownish with a lot of black sludge in the bottom?
a valve body rebuild kit/shift kit is about $30 and comes with detailed instructions
clean it in mineral spirits and re-assemble
what is the mileage?
 
Reply
Old Jan 21, 2010 | 12:51 AM
  #12  
Richards73's Avatar
Richards73
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 115
Likes: 0
From: Texas
the fluid looked good when i changed it
the bottom of the pan had some but not much dirt on the bottom
the filter was really dirty tho
were do u get the rebuit/shift kit
thanks
 
Reply
Old Jan 21, 2010 | 12:52 AM
  #13  
Richards73's Avatar
Richards73
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 115
Likes: 0
From: Texas
not really sure the milage 250,000?
 
Reply
Old Jan 21, 2010 | 04:25 AM
  #14  
brownfoot's Avatar
brownfoot
Senior User
Joined: Mar 2004
Posts: 448
Likes: 0
I have used these before for AOD and had goo results, they were recommended by the losal transmission shop
btw, they have VERY detailed instructions along with comments, enjoyed the sometimes scarastic answers/statements
Rebuilt Transmissions Transmission Parts (transgo is company name)
 
Reply
Old Jan 21, 2010 | 10:17 AM
  #15  
kermmydog's Avatar
kermmydog
Post Fiend
Joined: Oct 2003
Posts: 9,176
Likes: 4
From: Western Central NV
Smile

Originally Posted by Richards73
sometimes it doesnt like to go untill its warmed up is that normal
Yes it is normal when the seals are dried out. The old tranny guys call it "morning sickness". I have an 86 F250 4x4 C-6 that has been like that for over two years now. Although it shifts good & there is no other problems. What I did that helped get it through the last two years was add a can of TransX. That helps the seals. But this is not a cure. I'm rebuilding mine this spring.
As for fluild as stated above DEXRON II now DEXRON III is what is called for. But if you were not having issues before changing the fluild & you installed Type F hard shifting is normal because of the friction modifiers in Type F. As a rule if I remember correctly if you added Dexron to a type F trans it would be mushy shifting.
I would go to Walmart & buy a can of TransX like $5.79 were the parts houses want $9. See what happens. TransX will not hurt anything. It has been around since I was a teenager in the early 60s. We used it then.
The other option if you have the wrong fluid is to add a can of LubeGard it is a friction modifier.
Hope is helps.

Craig
 
Reply



All times are GMT -5. The time now is 02:41 AM.

story-0
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-02 21:45:57


VIEW MORE
story-1
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-2
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-3
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-4
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-5
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-6
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-7
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-8
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-9
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE