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Fluid types and weights

2K views 10 replies 6 participants last post by  rufushusky 
#1 ·
I have a simple, but important questions.

My truck did not come with an owner's manual.

What weights and fluid types should I use in the various parts of my truck.

Early 99 F250 4x4 auto 7.3

Engine Oil:
Tranny Fluid:
Transfer Case Fluid:
Rear End Fluid:
Front End Fluid:
Power Steering Fluid:
Brake Fluid:

Washer Fluid: (lol, no, not really)

Thanks In advance,
Brian
 
#2 ·
#3 ·
Awesome, just what I'm looking for. Previous owner snatched the manual when doing the final "cleaning out" before I took the truck.
 
#4 ·
Engine Oil: Any CJ-5 diesel rated oil. I've run Motorcraft 15w40 and Rotella 5w40 synthetic with great results
Tranny Fluid: Mercon ATF
Transfer Case Fluid:Mercon ATF
Rear End Fluid: Synthetic 75w140
Front End Fluid: Synthetic 75w90
Power Steering Fluid:Mercon ATF
Brake Fluid: Dot 3
 
#5 ·
I have a simple, but important questions.

My truck did not come with an owner's manual.

What weights and fluid types should I use in the various parts of my truck.

Early 99 F250 4x4 auto 7.3

Engine Oil: Any CJ-4 motor oil
Tranny Fluid: Mercon or according to FoMoCo Mercon V (it is been debated what will happen to your trans since when the 4R100 first came out Ford didn't spec Mercon V but now it says its ok to run it) Do a search for Mercon V, lots and lots of threads on it.
Transfer Case Fluid: Dex/Merc ATF
Rear End Fluid: Synthetic 75w-140 for SRW, 75w-90 for DRW
Front End Fluid: 75w-90, doesn't spec synthetic but it is not a bad idea
Power Steering Fluid: Mercon ATF
Brake Fluid: DOT 3

Washer Fluid: (lol, no, not really)

Thanks In advance,
Brian
Answers in red....
 
#7 ·
#9 ·
Depends on the coolant you have in your 7.3.

If you have green you should follow this:

https://www.powerstrokediesel.com/index.aspx?PageId=305#intervals

Under 6.9 and 7.3.

If you have Gold, you follow the same intervals as the 6.0s as in the link above. Basically you are checking the nitrate strength every 6 months and adding more as needed.

If you have ELC, you ignore both and just add an extender in 3-4 years depending on brand and run the coolant for 6-8 years total.
 
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