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: Special Care

If you drive on salted or dusty roads or if you drive near the ocean, hose off the undercarriage at least once a month. It is important that the drain holes in the lower edges of the doors, rocker panels, and trunk be kept clear and open. If you detect any stone chips or scratches in the paint, touch them up immediately...

Jeep Wrangler 2018-2026 Owners Manual: Selection Of Lubricant

It is important to use the proper transmission fluid to ensure optimum transmission performance and life. Use only the manufacturer specified transmission fluid. It is important to maintain the transmission fluid at the correct level using the recommended fluid...