That depends on the make and model.
Please ask a new question and include more info in the question.
Look for a transmission oil that says motor-craft compatible
That manual transmission doesn't use gear oil. You can use Mercon ATF.
what type of oil should i use in transmission 240z 4 speed
The oil type that is used for a manual transmission will depend on the car. Most cars will take 10W30 oil.
dexron VI
Dextron III
regular 10w 30 motor oil
The same oil as you put in the engine!
Automatic transmission oil is basically hydraulic oil for use in pumps. It is NOT recommended for use in any manual style transmission. All automatic transmissions in ATVs are a CVT type, and use no fluids. You should buy the proper gear oil for your ATV transmission as instructed in the owners manual.
Most manual transmissions use 80W90 gear oil. To be sure, check your owners manual. I have seen one use 30w motor oil.
For operation? Oil. Grease might be used in a few spots when assembling transmission parts, but to actually run the transmission you need oil. Which oil depends on which transmission. Check your owner's manual for the specific type and grade of fluid; Manual transmissions will usually use gear oil, and automatic transmissions will use transmission fluid.
you would use polaris specified AGL fluid in the transmission