* Manual Transmission: A 1992 Jeep Wrangler with a manual transmission typically uses GL-4 75W-80 or 80W-90 gear oil. Check your owner's manual for the specific recommendation. Using the incorrect type of gear oil (like GL-5) can damage the transmission's synchronizers.
* Automatic Transmission: A 1992 Jeep Wrangler with an automatic transmission requires ATF (Automatic Transmission Fluid). Again, consult your owner's manual for the specific type and brand recommended by Jeep. Using the wrong ATF can lead to poor shifting and transmission damage.
Crucially: Always refer to your owner's manual for the exact specifications and recommendations for your specific 1992 Jeep Wrangler. The manual will tell you the correct fluid type and capacity.
