Engine Oil
Jeep Wrangler / Jeep Wrangler Owner's Manual / Maintaining Your Vehicle / Maintenance Procedures / Engine Oil
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Engine Break-In Recommendations
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).
After the initial 60 miles (100 ...
Cooling System – Drain, Flush, And Refill
If the engine coolant (antifreeze) is dirty and contains a
considerable amount of sediment, clean and flush with
reliable cooling system cleaner. Follow with a thorough
rinsing to remove all dep ...
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, the engine oil must be
maintained at the correct level. The engine oil level should be checked five minutes
after a warmed up engine has be ...


