Jeep Wrangler: VEHICLE MAINTENANCE / Transfer Case

Front/Rear Axle Fluid

For normal service, periodic fluid level checks are not required. When the vehicle is serviced for other reasons the exterior surfaces of the axle assembly should be inspected...

Manual Transmission — If Equipped

Fluid Level Check Check the fluid level by removing the fill plug. The fluid level should be between the bottom of the fill hole and a point not more than 3/16 of an inch (4...

Other information:

Jeep Wrangler 2018-2026 Owners Manual: Starting Fluids

The engine is equipped with a glow plug preheating system. If the instructions in this manual are followed, the engine should start in all conditions and no type of starting fluid should be used. WARNING! Do not leave children or animals inside parked vehicles in hot weather...

Jeep Wrangler 2018-2026 Owners Manual: Maintenance Plan — Diesel Fuel Up To B5 Biodiesel

Refer to the maintenance plan for the required maintenance intervals. WARNING! You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic...