Welcome, Guest. Please login or register.
November 22, 2018, 06:54:33 am

Login with username, password and session length
435277 Posts in 37275 Topics by 9537 Members
Latest Member: Mgabski
Search: Advanced search
Advertiser Inquiries
+ My Community
|-+ General Tech
| |-+ Transmissions/Differentials
| | |-+ The definitive answer on trans fluid?
0 Members and 1 Guest are viewing this topic. « previous next »
Pages: [1] 2 Go Down Print
Author Topic: The definitive answer on trans fluid?  (Read 8940 times)
Cyanide
4 Banger
*
Offline Offline

Posts: 41

Location: Glenwood, Arkansas

« on: June 18, 2013, 11:43:41 pm »

Is there a general consensus on what fluid to use in a high performance C4 trans?

I've heard ONLY type F
I've heard to use Hygard (the tractor fluid)
And I've heard to use Mercron

What opinion do you guys have?
Logged
74Bronco
6 Banger
**
Offline Offline

Posts: 83

Location: Polk Co.,Oregon

« Reply #1 on: June 19, 2013, 12:09:56 am »

TYPE F  not sure about the modified hydraulic fluids such as hygard .doubt they have the correct amount and types of friction modifiers that's used in the type f fluid. but premium tractor/trans fluid i.e. hygard is made for and used extensively in heavy equipment auto or powershift transmission and wet clutch or wet brake applications and also as a hydraulic fluid. and I'm not sure what viscosity the type f is but hygard is about a 15 weight and I know the f is thinner then that, I believe around 7.5 weight.
there are many c4's seeing over 800-1000 hp on type f with no issues if set up right.
Logged

You got to hook if you want to COOK !!
289nate
"IL BUONO"
Global Moderator
Big Block
*****
Offline Offline

Posts: 11467


Location: Los Angeles

« Reply #2 on: June 19, 2013, 12:36:48 am »

Use what the company who built it recommends.  One celebrated company used to say to use nothing but Mobile 1 in their high end C4's.  Can't remember the weight though.  I'm sorry
Logged

\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
juiced coupe
Six figures worth of don't give a f*ck
Global Moderator
Big Block
*****
Offline Offline

Posts: 8394


Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #3 on: June 19, 2013, 12:38:13 am »

I use the low viscosity Hy-Gard in my C4, similar weight to ATF.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
CDW6212R
Big Block
*****
Offline Offline

Posts: 2466


Location: Knoxville, TN.

« Reply #4 on: June 19, 2013, 11:11:14 pm »

Try B&M Trick Shift, it's a nice type F fluid, and it's blue. I loved it in my first built AOD, in my first 91 LSC.
Logged

Don

1991 Mark VII LSC Special Edition, soon to be OBDII and 4R70W, then GTC body kit and 347.
1998 Mountaineer, plans for A4WD and KB 2200 blower later, XP8 parts, paint and a 332.
1973 Ranchero and 72 Sport front end ...will be a 351 Clevor, EFI and 4R70W.
saleen9973
4 Banger
*
Offline Offline

Posts: 16

Location:

« Reply #5 on: August 01, 2013, 10:43:58 am »

I run BG full synthetic transmission fluid and i love it in my c4.
Logged
Nate_135
Stroked Small Block
****
Offline Offline

Posts: 250

Location: Williston, ND

« Reply #6 on: August 01, 2013, 12:45:22 pm »

I ran mercon V in mine when it was in the truck, worked great. Ive heard of the hygard, never tried it...alot of people use it to adjust converter stall a few hundred rpm if they need to.

Hell i've had people tell me to run motor oil in it, and that it works just fine.
Logged

97 ranger, 2wd, Stock 302 shortblock, 10:1, Vic JR, TW170, QFT 650, 1 3/4 x 3 L/T's, header evac, homebrew AOD/4R70W, Precision converter, 325/40/17 DR's, Cal-tracs. 3450#.
bender460
Big Block
*****
Offline Offline

Posts: 1083

Location: Montana

« Reply #7 on: August 01, 2013, 01:40:14 pm »

  I asked some one in the know about this. He said the fluid used made no difference. Even with his warranty he didn't care. Basically as long as it is auto trans fluid run whatever you want.  If the trans isn't working right it isn't because of the fluid used.

 
Logged

92lx
pump gas, N.A. 347
TFS highprts, CI TLSR,
super vic,  4500 TB
MS3X EFI
Ultimate 5400rpm 8" converter C4
Full Team Z front and rear
10.90 at 124......D.A. 6500'
69 Merc
The Ricer King
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 13801


Location: OC, CA

« Reply #8 on: August 01, 2013, 02:24:00 pm »

I use fully synthetic race fluid for my trans.  I also use fully synthetic fluid for my engine, too.
Logged

Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
juiced coupe
Six figures worth of don't give a f*ck
Global Moderator
Big Block
*****
Offline Offline

Posts: 8394


Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #9 on: August 01, 2013, 02:54:51 pm »

If the trans isn't working right it isn't because of the fluid used.

But there are differences in how long the fluids and transmissions hold up with different fluids. And different fluids do change the characteristics of converters and transmissions, at least when you step away from the basic stuff.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
al2
Big Block
*****
Offline Offline

Posts: 1720


Location: fort worth,tx.

« Reply #10 on: August 01, 2013, 03:18:01 pm »

C6 built 25 yrs ago using dextron fluid. When we got it back running this yr we drained Trans and converter and refilled with dextron. Was going to change fluid and filter. What fluid do y'all recommend
Logged
CDW6212R
Big Block
*****
Offline Offline

Posts: 2466


Location: Knoxville, TN.

« Reply #11 on: August 01, 2013, 03:21:37 pm »

The older transmissions need less slick ATF's like type F. The Mercon V is way too slick for an older trans.

Try B&M Slick Shift for a great type F fluid.
Logged

Don

1991 Mark VII LSC Special Edition, soon to be OBDII and 4R70W, then GTC body kit and 347.
1998 Mountaineer, plans for A4WD and KB 2200 blower later, XP8 parts, paint and a 332.
1973 Ranchero and 72 Sport front end ...will be a 351 Clevor, EFI and 4R70W.
al2
Big Block
*****
Offline Offline

Posts: 1720


Location: fort worth,tx.

« Reply #12 on: August 01, 2013, 03:26:49 pm »

It only has maybe 50 passes on it   The car sat for 25 yrs. it is amazing it works. Best pass 6.66
Logged
Nate_135
Stroked Small Block
****
Offline Offline

Posts: 250

Location: Williston, ND

« Reply #13 on: August 01, 2013, 09:56:12 pm »

The older transmissions need less slick ATF's like type F. The Mercon V is way too slick for an older trans.

Try B&M Slick Shift for a great type F fluid.

IMO, you need to consider more than just the age of the transmission. If it has been overhauled, odds are it has updated frictions/bands that handle or even recommend mercon/dexron fluids. How many C4's out there getting beat on haven't been touched inside?
Logged

97 ranger, 2wd, Stock 302 shortblock, 10:1, Vic JR, TW170, QFT 650, 1 3/4 x 3 L/T's, header evac, homebrew AOD/4R70W, Precision converter, 325/40/17 DR's, Cal-tracs. 3450#.
CDW6212R
Big Block
*****
Offline Offline

Posts: 2466


Location: Knoxville, TN.

« Reply #14 on: August 01, 2013, 10:28:56 pm »

The older transmissions need less slick ATF's like type F. The Mercon V is way too slick for an older trans.

Try B&M Slick Shift for a great type F fluid.

IMO, you need to consider more than just the age of the transmission. If it has been overhauled, odds are it has updated frictions/bands that handle or even recommend mercon/dexron fluids. How many C4's out there getting beat on haven't been touched inside?

The fluid change over the years was not due to one change of friction materials etc. The C4 is not designed to use the Mercon slick V ATF. The friction of the fluid is part of the design of each valve body, the timing of the shifts is based on more than just one item. The frictions and fluid affect shift timing, as do other items like accumulators and band clearances etc.

I just stated something which should be fundamental. Use the Mercon V for the later model transmissions, which are designed for it with the combination of VB, frictions, accumulators, clearances etc.

Synthetic ATF is better than any non synthetic ATF in terms of quality and additives, stability etc. But don't confuse synthetics as all being the same or equivalent. Use the proper type of fluid for each trans, and find the best fluid among that type of ATF.

I know people who are getting some slipping with their AOD's by having Mercon V in them. It's very good ATF, but it's the wrong fluid for an AOD. Now some people like a seamless shift, and they might like that slipping. But for long life of the frictions, get the shifts as positive as possible, quick and efficient, not soft due to slippage.
Logged

Don

1991 Mark VII LSC Special Edition, soon to be OBDII and 4R70W, then GTC body kit and 347.
1998 Mountaineer, plans for A4WD and KB 2200 blower later, XP8 parts, paint and a 332.
1973 Ranchero and 72 Sport front end ...will be a 351 Clevor, EFI and 4R70W.
Pages: [1] 2 Go Up Print 
« previous next »
Jump to:  



Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines



408 Stroker