Jeep Wrangler 2018-2025 Owners Manual / TECHNICAL SPECIFICATIONS / FUEL REQUIREMENTS — GASOLINE ENGINE / 2.0L Engine and 3.6L Engine

Jeep Wrangler: FUEL REQUIREMENTS — GASOLINE ENGINE / 2.0L Engine and 3.6L Engine

2.0L Engine

Jeep Wrangler. 2.0L Engine and 3.6L 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. The use of 91 or higher octane “premium” gasoline will allow these engines to operate to optimal performance. This increase in performance is most noticeable in hot weather or other heavier load conditions, such as while towing.

3.6L Engine

Jeep Wrangler. 2.0L Engine and 3.6L Engine This engine is designed to meet all emissions regulations 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. The use of higher octane “Premium” gasoline will not provide any benefit over “Regular” gasoline in these engines.

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...

Reformulated Gasoline. Materials Added To Fuel. Gasoline/Oxygenate Blends

Reformulated Gasoline Many areas of the country require the use of cleaner burning gasoline referred to as “reformulated gasoline”. Reformulated gasoline contains oxygenates and are specifically blended to reduce vehicle emissions and improve air quality...

Other information:

Jeep Wrangler 2018-2025 Owners Manual: AutoStick

AutoStick is a driver-interactive transmission feature providing manual shift control, giving you more control of the vehicle. AutoStick allows you to maximize engine braking, eliminate undesirable upshifts and downshifts, and improve overall vehicle performance...

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...

Remote Start system

Jeep Wrangler. Remote Start system This system uses the key fob to start the engine conveniently from outside the vehicle while still maintaining security. The system has a range of approximately 300 ft (91 m).