I added a FTVB and 4x4 Pan when the truck had 3500 miles. Nows it's around 25-26,000 miles.

Time to change the fluid?



I'll be bringing it out of storage in a few weeks. I'll be changing the fluids BEFORE I start it up. The fluids and JUNK has all drained to the bottom, I want to get it out of the engine before I fire it up. SHould I change the Transmission fluid also?

 

Probably not needed.......but it sure is cheap insurance.

--Joe

 

Get it out of there man. After a rebuild I advise my customers based on their usage of the vehicle. Average Joe, about every 25,000-30,000. A little heavy on the go pedal I would say 20,000 or so. All the heavy duty ones, plow guys and racers I would say every year or 15,000. Fluid condition really goes down the crapper when it see a lot of heat. Transmissions don't like heat. It is cheap insurance. I can't even tell you how many times I have to rebuild a tranny because someone didn't want to spend $50 on a fluid/filter change. -Mat-

 

I change mine around 20k miles (prior F150) and I run synthetic.

I have 12k miles on the Lightning and have already changed and put in the synthetic.

 

Did my Lightning at 15,800 when FTVB installed and pan, and I do my Cobra every year / 12 k or so. Kind of a spring ritual.

 

what brand synthetic?

 

I use Amsoil in almost everything, except the lawnmower.

 

There's transmission fluid?

Who knew?

 

 

This is the one that is compatible with our transmissions, as Gregg Evans says (as does the owners manual) not to use any dual purpose Dexron (such as II & III combined) in the same bottle. This complies with any/all warnings.

http://www.amsoil.com/storefront/atd.aspx

 

Blown,
From one of Gregg's previous message, the key to fluid is that it MUST not contain HFM additives.

I have e-mailed Amsoil 3 times already and have not received a reply. I'm not impressed.

From a previous conversation with an AMZOil tech, this fluid is very similar to the ATF. So not sure if it will really do the job.

I am very concerned because I have ATF in my tranny right now.

TB

 

I understand your concern. I went by the rating/specs and found this one not to be the harmful fluid, however, I will admit I do not know what HFM is. Can you please elaborate?

 

HFM = Highly Friction Modified, a class of chemicals added to fluid. You can make MERCON V by adding an HFM supplement to it, but the chemicals are not compatible with the innards of the 4R100 (although almost all other transmissions that call for MERCON can use MERCON V, the 4R100 is a major exception to this rule). To know you've got the right stuff, it has to comply with Ford M2C166 – H, and/or Ford M2C138 , which are the engieering specs for the fluid. If it's labeled for both MERCON and MERCON V, don't use it in the 4R100.

G

 

The one I'm using says this;

[Product Applications:
AMSOIL Torque-Drive™ is recommended as a direct replacement for TranSynd® Synthetic ATF in heavy duty, on and off highway automatic transmissions manufactured by Allison®, General Motors®, Ford®, Voith® and ZF® or wherever the standards TES-295, C-4, DEXRON® III, MERCON® or ZF® TE-ML 14C are specified. Examples of operations that benefit from using AMSOIL Torque-Drive™ include municipal or transit buses, garbage haulers, motor homes, delivery vans, emergency vehicles, school buses, dump trucks, utility vehicles, cement trucks, line haul trucks and tow trucks.]

 

Greg,

I'm using Pennzoil dexron III/Mercon. It say it meets Fords requirements for M2C185A and MC138CJ. Is this the right stuff?