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 2018-2026 Owners Manual: To Manually Turn Off and Turn On The Stop/Start System

TO MANUALLY TURN OFF THE STOP/START SYSTEM Stop/Start OFF Switch Push the Stop/Start OFF switch (located on the switch bank). The light on the switch will illuminate. The “Stop/Start OFF” message will appear in instrument cluster display within the Stop/Start section, and the autostop function will be disabled...

Jeep Wrangler 2018-2026 Owners Manual: Towing Requirements — Trailer Brakes

Do not interconnect the hydraulic brake system or vacuum system of your vehicle with that of the trailer. This could cause inadequate braking and possible personal injury. An electronically actuated trailer brake controller is required when towing a trailer with electronically actuated brakes...