Jeep Wrangler: TECHNICAL SPECIFICATIONS / FLUID CAPACITIES

Biodiesel Fuel Requirements

A maximum blend of 5% biodiesel meeting ASTM specification D975 is recommended for use with your diesel engine. If frequent operation with Biodiesel blends that are between 6% and 20% (B6–B20) is desired, the maintenance schedule is subject to shorter intervals...

ENGINE FLUIDS AND LUBRICANTS

CAUTION! Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant (antifreeze), may result in engine damage and may decrease corrosion protection...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: STARTING THE ENGINE — DIESEL ENGINE (IF EQUIPPED)

Before starting your vehicle, adjust your seat, both inside and outside mirrors, and fasten your seat belts. The starter is allowed to crank for up to 30-second intervals. Waiting a few minutes between such intervals will protect the starter from overheating...

Jeep Wrangler 2018-2025 Owners Manual: Remove The Right And Left Quarter Windows:

Through the rear opening, push the bottom corner outward and release tab from the bottom of the window pillar. Step One Undo the hook-and-loop fastener located at the upper front corner of each quarter window. Step Two Starting at the rear of the vehicle, remove plastic retainer from along the bottom of the window moving toward the front of the vehicle...