Transmission Fluid

[silverscott]

I have an 05 australian delivered F250 7.3 powerstroke with 4 speed auto
I am getting conflicting advice on running synthetic trans fluid .
some people are saying it can affect the seals and I should stick to running
mopar fluid

any advice please
Silverscott

[mschn99]

Originally Posted by silverscott

I have an 05 australian delivered F250 7.3 powerstroke with 4 speed auto
I am getting conflicting advice on running synthetic trans fluid .
some people are saying it can affect the seals and I should stick to running
mopar fluid

any advice please
Silverscott

DO NOT use mopar fluid, if its the same stuff dodge uses here in the states it is their own special blend that isnt compatable with anything.......the only fluid i would run would be one that says its compatable with mercon or dextron3.....make sure if you go with a synthetic it says this also....and you wont have any problems because if the fluid..........Marc

[JDahl]

Use Mercon V it has a built in friction modifier when opposed to regular mercon. However, ATF3 (mopar) is basicly the same as Mercon 5. The Mopar stuff just predates the ford stuff.

You boys down under must have some wierd stuff going on but if its an '05 it should have a torqueshift and that takes a motorcraft fluid called SP. Let me know some stuff about that truck, it sounds interesting!

[mschn99]

Originally Posted by Stroketechintraining

You boys down under must have some wierd stuff going on but if its an '05 it should have a torqueshift and that takes a motorcraft fluid called SP. Let me know some stuff about that truck, it sounds interesting!

the didnt offer the 6.0 in austrellia man........we just learned about that a couple months ago when a member called the lone ranger signed up........Marc

[silverscott]

We get our righthand drive trucks as knock down kits x USA but assembled
in Brazil
Our 05 was the last of what you call your 99/03 superduty built in Brazil 05
and the story is we will not get anymore F series until 2007/08 in oz

Thats awesome!

[Lone Ranger]

Well the latest I have, in checking with both, is that Transmax Z supercedes all of the rest and is the best according to Ford Australia and Castrol Tech....

For the rest in America, all of our Fords through this years 2006, are time frame frozen to your last year of the 7.3 in 2003... Same everything... Only right hand drive and no changes since 2003.. And from what I hear about the 6.0 it is lucky for us... We will have to see what comes with the 6.4 in the next couple of years.... But I like the feel of the 7.3 and wonder if I would like to just stick with the last biggest and best... Ha!

Running Castrol Z now for two months, towing a 22' Bushtracker... And roaring around town a bit for fun picking on the aggressive rice grinders that cut me off in traffic. Picked on a guaged up WRX this morning that roared past on the merging lane... Blew by him and he slowed right down, didn't want to play... (Lucky for me, but he didn't know that)... Ha! LOL

Ranger in Oz..

[RJacks258]

I use the Aamco brand mercon V and have been since 35k. At 158K I haven't any problems. Its been since 140k that I started hot rodding. And somewhere around 120k I had the TC replaced because it was noisy (inherent in some '99 trucks).