Trans Fluid Question..

LilJuicedCoupe

Forum Member
I am replacing the transmission in my 98 Grand Marquis....What trans Fluid should i put in the new (used) Transmission?....Brand??? Whatever you can help me with
 
Whatever kind that was in there before.

Captain Obvious :flip:


type F

I dont think you are looking to spend 100 bucks on trans fluid so anything type f or says for fords will do the trick.
you really dont need anything special as far as synthic, also grab a filter if you have not done so.
 
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that trans call for dexcron/mercron 3. type f will under lubricate the planetary gearset and cuase premature wear.
 
that trans call for dexcron/mercron 3. type f will under lubricate the planetary gearset and cuase premature wear.

Damn i missed that i should have double checked and stated to check recommendation in the owners manual to determine the correct fluid.
 
Well i obviously know what Type of trans fluid to use.....I was wondering if people had different choices as far as fluid goes....I know i dont need a full Syn...But if someone said they had better luck with one or the other i might pick it up....thanks
 
Well i obviously know what Type of trans fluid to use.....I was wondering if people had different choices as far as fluid goes....I know i dont need a full Syn...But if someone said they had better luck with one or the other i might pick it up....thanks


anything meeting API specs and is certified is fine.there is usually a small circular label with API certified on the bottles. Most of the fluis that are about $2-3 per quart are just fine.
 
Well i obviously know what Type of trans fluid to use.....I was wondering if people had different choices as far as fluid goes....I know i dont need a full Syn

Don't be confused by the term "Full Synthetic". That does not mean the fluid is 100% synthetic oil. Its not.

As far as your vehicle goes, just buy any quality brand mercon/dexron atf. Stay away from cheap budget oils. Most of them are used oil that been cleaned/refined.
Good time to drop/clean the pan & replace the filter. Changing front & rear seals is also a good thing to do @ this time.
 
Don't be confused by the term "Full Synthetic". That does not mean the fluid is 100% synthetic oil. Its not.
As far as your vehicle goes, just buy any quality brand mercon/dexron atf. Stay away from cheap budget oils. Most of them are used oil that been cleaned/refined.
Good time to drop/clean the pan & replace the filter. Changing front & rear seals is also a good thing to do @ this time.

What about Amsoil?
 
i heard dexron VI is good stuff. replaces dexron II and III. its semi synthetic.


IIRC it has alot of friction modifiers and could cuase issues with older lock converter clutch's. Best to stick with the proper fluid for the application.
 
IIRC it has alot of friction modifiers and could cuase issues with older lock converter clutch's. Best to stick with the proper fluid for the application.

hrm never heard of that. got any links to info about it?

DEXRON-VI can be used in any proportion in past model vehicles equipped with an automatic transmission, in place of DEXRON-III (for instance, topping off the fluid in the event of a repair or fluid change). DEXRON-VI is also compatible with any former version of DEXRON for use in automatic transmissions.

http://www.sandyblogs.com/techlink/2009/05/dexron-vi.html
 
Dexron VI is a slightly thinner fluid than regular dexron atf, that's compatible with all transmissions that require Dexron fluids. Its a excellent fluid with grear lubricating qualities.
Its not recommended as a replacement for Mecron fluid, which does use a different combination of friction modifiers. Lubeguard is a company that offers friction modifier additives as a supplement to transmission fluids, which brings standard atf fluids up to spec.
 
I will poke around and see if I can find info on the various fomulations.

I understand the compatibility they claim. I also know that some transmissions, especially fords, are sensitive to converter clutch wear so it is best to use the proper fluid. Now if it has a carbon or replaced TCC lining it should be just fine.

All depends on the application and the friction modifier issue may not even be a issue but always better safe then sorry.


hrm never heard of that. got any links to info about it?

DEXRON-VI can be used in any proportion in past model vehicles equipped with an automatic transmission, in place of DEXRON-III (for instance, topping off the fluid in the event of a repair or fluid change). DEXRON-VI is also compatible with any former version of DEXRON for use in automatic transmissions.

http://www.sandyblogs.com/techlink/2009/05/dexron-vi.html
 
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