Fluids and quantities

[ZF6 MAN]

Lets get a thread going here on which fluids everyone is using and where. This will make for a good list of fluids for future questions. I will start, lets try and keep this thread to a list of fluids and capacities only.

Enigne Oil: Mobil Delvac 1, 10 Qts.
Engine Coolant: Dexcool, recommend dealer flush and fill
Front trans axle: Mobil Conventional 80W-90 Gear oil, 2 Qts.
Transfer Case: Mobil 1 5W-30 engine oil, 3 Qts, (ATF Recommended by GM)
ZF6 Manual Transmission: Mobil Fully Synthetic ATF, 6 Qts.
Rear Axle: Mobil 1 Synthetic 75W-90 Gear oil, 3.5 Qts

This should be a good starter for a reference. Remember, this should be what you use in YOUR truck to show different perspectives.

 

[michael nelson]

good post...

 

[truckie481]

Engine - Amsoil Heavy duty marine grade
Axles - Amsoil severe gear
The rest is OEM for now

 

[saratoga]

Engine: Either Delo 15W40 or Delvac 15W40 (which ever is available at the time) 10qts
Trans: TranSynd ~5gal
Rear Diff: Mobil-1 75W90 4+qts
Power Steering: Transynd ~2qts
Coolant: Dex-Cool and DISTILLED H2O
Fuel Additive: Wal-Mart TCW-3 two stroke oil~ 0.5oz/gal

 

[joverman]

Engine: Rotella 15w40 (switching the Rotella 5w40 full synthetic next oil change)
Trans: Mobil 1 Dex VI (switching to TranSynd at next oil change)
Rear Diff: Mobil 1 75w90
Front Diff: Mobil 1 75w90
Coolant: Stock
Transfer Case: Mobil 1 Dex VI