Wrangler 4WD L4-150 2.5L VIN P MFI (1998)
Fuel: Description and Operation
FUEL USAGE STATEMENT
Your vehicle was designed to meet all emission regulations and provide excellent fuel economy using high quality unleaded gasoline. Only use
unleaded gasoline having a minimum posted octane of 87.
If your vehicle develops occasional light spark knock (ping) at low engine speeds, this is not harmful. However, continued heavy knock at high
speeds can cause damage and should be reported to your repair shop immediately. Engine damage as a result of heavy knock operation may not be
covered by the new vehicle warranty.
In addition to using unleaded gasoline with the proper octane rating, those that contain detergents, corrosion and stability additives are
recommended. Using gasoline that have these additives will help improve fuel economy, reduce emissions, and maintain vehicle performance.
Generally, premium unleaded gasoline contain more additive than regular unleaded gasoline.
Poor quality gasoline can cause problems such as hard starting, stalling, and stumble. If you experience these problems, use another brand of
gasoline before considering service for the vehicle.
