Jeep Wrangler 2018-2024 Owners Manual / TECHNICAL SPECIFICATIONS / FUEL REQUIREMENTS — GASOLINE ENGINE

Jeep Wrangler: TECHNICAL SPECIFICATIONS / FUEL REQUIREMENTS — GASOLINE ENGINE

While operating on gasoline with the required octane number, hearing a light knocking sound from the engine is not a cause for concern. However, if the engine is heard making a heavy knocking sound, see a dealer immediately. Use of gasoline with an octane number lower than recommended octane can cause engine failure and may void the New Vehicle Limited Warranty.

Poor quality gasoline can cause problems such as hard starting, stalling, and hesitations. If you experience these symptoms, try another brand of gasoline before considering service for the vehicle.

WHEEL AND TIRE TORQUE SPECIFICATIONS

Proper lug nut/bolt torque is very important to ensure that the wheel is properly mounted to the vehicle. Any time a wheel has been removed and reinstalled on the vehicle, the lug nuts/ bolts should be torqued using a properly calibrated torque wrench using a six sided (hex) deep wall socket...

2.0L Engine and 3.6L Engine

2.0L Engine This engine is designed to meet all emission requirements, and provide satisfactory fuel economy and performance, when using high-quality unleaded “regular” gasoline having an octane rating of 87, as specified by the (R+M)/ 2 method...

Other information:

Jeep Wrangler 2018-2024 Owners Manual: Engine Coolant Level — 2.0L

WARNING! Do not open hot engine cooling system. Never add engine coolant (antifreeze) when the engine is overheated. Do not loosen or remove the cap to cool an overheated engine. Heat causes pressure to build up in the cooling system. To prevent scalding or injury, do not remove the pressure cap while the system is hot or under pressure...

Jeep Wrangler 2018-2024 Owners Manual: Five-Position Transfer Case — If Equipped

Four-Wheel Drive Gear Selector The transfer case provides five mode positions: 2H (2WD High) — Two-Wheel Drive High Range 4H AUTO (4WD High AUTO) — Four-Wheel Drive Auto High Range 4H PT (4WD High PT) — Four-Wheel Drive Part Time High Range N (Neutral) 4L (4WD Low) — Four-Wheel Drive Low Range For additional information on the appropriate use of each transfer case mode position, see the information below: 2WD High Two-Wheel Drive High Range — This range is for normal street and highway driving on dry, hard surfaced roads...

Bi-Level Mode

Jeep Wrangler. Bi-Level Mode Air comes from the instrument panel outlets and floor outlets. A slight amount of air is directed through the defrost and side window demister outlets.

NOTE:

Bi-Level mode is designed under comfort conditions to provide cooler air out of the panel outlets and warmer air from the floor outlets.