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Home >> Jeep >> 2010 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Engine Cooling System & Automatic Transmission Cooling System >> Standard Procedure >> Filling

Standard Procedure: Filling

  1. Tighten the radiator draincock and the cylinder block drain plug(s).
  2. Fill system with an antifreeze mixture. Refer to Vehicle Quick Reference/Capacities and Recommended Fluids - Description . Fill the radiator to the top and install the radiator cap. Add sufficient coolant to the reserve/overflow tank to raise the level to the FULL mark.
  3. Operate the engine with both the radiator cap and reserve/overflow tank cap in place. After the engine has reached the normal operating temperature, shut the engine off and allow it to cool.
  4. Add coolant to the reserve/overflow tank as necessary. Only add coolant when the engine is cold. Coolant level in a warm engine will be higher due to thermal expansion.