What transmission oil do you need to use in a 2004 Jeep Rubicon?

For a 2004 Jeep Rubicon, you should use Mopar ATF+4 Transmission Fluid for the automatic transmission. If your Rubicon has a manual transmission, it typically requires SAE 75W-90 gear oil. Always consult your owner's manual for specific recommendations and ensure compatibility with your vehicle's transmission type.