Jeep Wrangler 2018-2025 Owners Manual / STARTING AND OPERATING / ENGINE BREAK-IN RECOMMENDATIONS — DIESEL ENGINE (IF EQUIPPED)

Jeep Wrangler: STARTING AND OPERATING / ENGINE BREAK-IN RECOMMENDATIONS — DIESEL ENGINE (IF EQUIPPED)

The diesel engine does not require a break-in period due to its construction. Normal operation is allowed, providing the following recommendations are followed:

  • Warm up the engine before placing it under load.
  • Do not operate the engine at idle for prolonged periods.
  • Use the appropriate transmission gear to prevent engine lugging.
  • Observe vehicle oil pressure and temperature indicators.
  • Check the coolant and oil levels frequently.
  • Vary throttle position at highway speeds when carrying or towing significant weight.

NOTE:

Light duty operation such as light trailer towing or no load operation will extend the time before the engine is at full efficiency. Reduced fuel economy and power may be seen at this time.

The engine oil installed in the engine at the factory is a high-quality energy conserving type lubricant. Oil changes should be consistent with anticipated climate conditions under which vehicle operations will occur. For recommended viscosity and quality grades. NON-DETERGENT OR STRAIGHT MINERAL OILS MUST NEVER BE USED.

    ENGINE BREAK-IN RECOMMENDATIONS — GASOLINE ENGINE (IF EQUIPPED)

    A long break-in period is not required for the engine and drivetrain (transmission and axle) in your vehicle. Drive moderately during the first 300 miles (500 km)...

    PARKING BRAKE

    Before exiting the vehicle, make sure that the parking brake is fully applied. Also, be certain to leave an automatic transmission in PARK, or manual transmission in REVERSE or FIRST gear...

    Other information:

    Jeep Wrangler 2018-2025 Owners Manual: Diesel Exhaust Fluid


    Your vehicle is equipped with a Selective Catalytic Reduction (SCR) system to meet the very stringent diesel emissions standards required by the Environmental Protection Agency. The purpose of the SCR system is to reduce levels of NOx (oxides of nitrogen emitted from engines) that are harmful to our health and the environment to a near-zero level...

    Jeep Wrangler 2018-2025 Owners Manual: Installing A Child Restraint With A Switchable Automatic Locking Retractor (ALR):


    Child restraint systems are designed to be secured in vehicle seats by lap belts or the lap belt portion of a lap/shoulder belt. WARNING! Improper installation or failure to properly secure a child restraint can lead to failure of the restraint...

    Categories

    Automatic Headlights — If Equipped, Lights-On Reminder

    Automatic Headlights

    This system automatically turns the headlights on or off according to ambient light levels. To turn the system on, rotate the headlight switch clockwise to the last detent for automatic headlight operation. When the system is on, the headlight time delay feature is also on. This means the headlights will stay on for up to 90 seconds after you place the ignition into the OFF position. To turn the automatic system off, move the headlight switch out of the AUTO position.

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