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Automotive fluids

I'm in a position where I am going to replace all the Cougars fluids. I really don't pay much attention to what's new out there. I need to replace the oil, differential gear oil, and transmission oil. Those of you who race, have you tried something and found it to be better than what you were using before, I would like to hear about it (plain and simple).  Thanks!

Automotive fluids

Reply #1 –
For the rear, use anything synthetic, and if you have a Trac-Loc, make sure you have friction modifier (you'll need 4 ounces) if the gear lube doesn't have it in already..
Oh yeah, 2 qts of gear lube, give or take a few drops..
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)

Automotive fluids

Reply #2 –
ThunderbirdSport302,
                            I read somewhere that changing the transmission fluid in an old transmission is not a good idea. I am in the process of removing my oil pan, and putting on a new transmission filter so I don't think I have much choice.  I also want to hook up a transmission cooler, being I live in Arizona. Is it better to just add fluid, or flush the system. I would appreciate your thoughts on this.  Thanks!

Automotive fluids

Reply #3 –
Anybody?

Automotive fluids

Reply #4 –
In my experience, just changing the fluid and filter is a good thing. Flushing the trans can lead to odd shift patterns afterward.

As for the other fluids, synthetic or syn blends are the way to go. The only thing you may need to look out for is leaks at the seals. That includes the oil pan, rear main seal, valve cover gaskets, etc. Otherwise you'll be fine.

Are you running any type of coolant booster now? (Water Wetter, etc.)

Automotive fluids

Reply #5 –
75-140 DIFF SYNTHETIC

Tranny Ford type F

And yes it has been know that changing tranny fluid causes issues. The AAMCO guy down the block always preaches this to us. He claims the added detergents release junk built up in the tranny and wipes it out. I would use a stand alone tranny cooler Fan cooled and not the cooler in the radiator. Thanks

This works great and cheap!!! This is the unit we use in all our auto builds. My TYPHOON HAS ONE

I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Automotive fluids

Reply #6 –
do NOT put type F in ANY AOD!
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)

Automotive fluids

Reply #7 –
EricCoolCats,
                  I also heard or read that flushing the transmission can effect shift patterns. I am in the process of taking the oil pan off so I can change the gasket and inspect the pan. I am also taking the transmission pan off for the same reasons, to be able to remove the oil pan and to change fluid, filter, and gasket. The valve cover gaskets are new and I sure hope my rear main seal is alright. No, I am not using any coolant booster now, but I did just put in a new 2 row aluminum radiator in my car. I went from the original instrument lights to an inexpensive set of gauges a while back so I would at least have an idea whats going on under my hood. recently, I just bought a set of VDO gauges that may not be the top of the line, but are obviously much better. I will be installing them soon. I also just installed a new 180 degree thermostat, I believe that is OE for my car. I figure I should stay with Dexron II to be safe. Thanks, for taking the time to help me out.

Automotive fluids

Reply #8 –
Looks like I got more information while I was typing (I am pretty slow). I have a stand alone transmission cooler, but I didn't know they made fans for them. I was wondering what the best set up for it would be. I don't really want to block my radiator if possible, my A/C cooler is already doing a good job of that.

Automotive fluids

Reply #9 –
Tom,

Can you elaborate on that cooler a little more?  Like where to buy one because that is a thing of beauty!  I know a couple of my buddies running worked over AOD, C4's, and Power Glides that would most likely be interested.

Darren

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Automotive fluids

Reply #10 –
That is a nice piece that Tom has, you can also check out this website (http://www.derale.com) starting around page 21. I used a couple of thier engine cooling fans and relay controllers on a friends mustang they work great. You can find them on the Summit and Jegs website.
Quote from: Aerocoupe;396208
Tom,

Can you elaborate on that cooler a little more?  Like where to buy one because that is a thing of beauty!  I know a couple of my buddies running worked over AOD, C4's, and Power Glides that would most likely be interested.

Darren
Donnie
10 Second NA TBird
Fredericksburg Va

Automotive fluids

Reply #11 –
JR got it from B&M and i like it because i put it under the car or truck. I hate a cluttered under hood situation. The type F Fluid was recommended to me by my tranny builder. As i have stated before i am no expert on AUTOS. I am a 6 speeder guy!! But B&M TRICK SHIFT is a type F fluid with more friction modifiers. If this is in fact and you cant use type F i an screwed. Because we use it in every High Performance auto we setup. Can you elaborate on why type F is a NO NO. My tranny builder says it is OK. Thank You
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Automotive fluids

Reply #12 –
which way does that trans fan cooler blow? do you reverse the leads for opposite flow?
mounted in front of rad or behind?

nice cooler indeed.
 

Automotive fluids

Reply #13 –
Quote from: TOM Renzo;396234
JR got it from B&M and i like it because i put it under the car or truck. I hate a cluttered under hood situation. The type F Fluid was recommended to me by my tranny builder. As i have stated before i am no expert on AUTOS. I am a 6 speeder guy!! But B&M TRICK SHIFT is a type F fluid with more friction modifiers. If this is in fact and you cant use type F i an screwed. Because we use it in every High Performance auto we setup. Can you elaborate on why type F is a NO NO. My tranny builder says it is OK. Thank You
Don't wish to argue with your tranny builder. He would know better than I. Mercon II and Mercon III were designed for AODs. With Mercon III being the better fluid. They were both designed as upgrades over Type F and are fully compatible, as is Mercon IV and Mercon V. Other fluids that have letter designations are designed for trannys with different tolerances such as Mercon SP. It is my guess that B&M Trick Shift is close to Mercon III because of the friction modifiers. An MN12 would benefit from Mercon V to stop TCC chatter. There is a service bulliton on that.

Automotive fluids

Reply #14 –
The dangers of changing the fluids in an old transmission is the filling procedure. Adding fluid, running it through the gears, and checking fluid level and repeating until full causes a low fluid condition. This can cause slippage. Fluid replacement on an old tranny can either save it or kill it. Damage can be limited if you fill it while the car is on jack stands or on a lift, but of course this can cause added danger to you. One would be crazy to do this on a jack.