Jeep Wrangler: FUEL REQUIREMENTS — GASOLINE ENGINE / CNG And LP Fuel System Modifications. MMT In Gasoline

CNG And LP Fuel System Modifications

Modifications that allow the engine to run on Compressed Natural Gas (CNG) or Liquid Propane (LP) may result in damage to the engine, emissions, and fuel system components. Problems that result from running CNG or LP are not the responsibility of the manufacturer and may void or not be covered under the New Vehicle Limited Warranty.

MMT In Gasoline

Methylcyclopentadienyl Manganese Tricarbonyl (MMT) is a manganese-containing metallic additive that is blended into some gasoline to increase octane. Gasoline blended with MMT provides no performance advantage beyond gasoline of the same octane number without MMT. Gasoline blended with MMT reduces spark plug life and reduces emissions system performance in some vehicles. The manufacturer recommends that gasoline without MMT be used in your vehicle. The MMT content of gasoline may not be indicated on the gasoline pump; therefore, you should ask your gasoline retailer whether the gasoline contains MMT. MMT is prohibited in Federal and California reformulated gasoline.

    Do Not Use E-85 In Non-Flex Fuel Vehicles

    Non-Flex Fuel Vehicles (FFV) are compatible with gasoline containing up to 15% ethanol (E-15). Use of gasoline with higher ethanol content may void the New Vehicle Limited Warranty...

    Fuel System Cautions

    CAUTION! Follow these guidelines to maintain your vehicle’s performance: The use of leaded gasoline is prohibited by Federal law. Using leaded gasoline can impair engine performance and damage the emissions control system...

    Other information:

    Jeep Wrangler 2018-2025 Owners Manual: Disconnecting The Jumper Cables


    Disconnect the negative (-) end of the jumper cable from the engine ground of the vehicle with the discharged battery. Disconnect the opposite end of the negative (-) jumper cable from the negative (-) post of the booster battery. Disconnect the positive (+) end of the jumper cable from the positive (+) post of the booster battery...

    Jeep Wrangler 2018-2025 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...

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    REMOTE START — IF EQUIPPED (DIESEL)

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