Keep Your Jeep in Peak Condition
✅ Routine Fluid Maintenance
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▢ Engine Oil
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Change every 5,000 miles (synthetic) or 3,000 miles (conventional)
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Don’t overtighten the oil filter cap on 3.6L engines (torque to 25 Nm)
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▢ Transmission Fluid
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Change every 30,000 miles
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Inspect for fluid level and clarity
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▢ Transfer Case Fluid
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Change every 30,000 miles
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Use Jeep-approved fluid only
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▢ Differential Fluid
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Change every 30,000 miles
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Check for gear oil leaks at the differential covers and axle seals
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▢ Brake Fluid
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Replace every 2 years or 24,000 miles
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Look for darkened fluid or air in the lines
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▢ Coolant/Antifreeze
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Check level in overflow tank and radiator when engine is cold
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Replace every 5 years or as recommended
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Only use the correct coolant type to avoid chemical reactions (e.g., pink organic coolant issues)
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🛠️ Top Places to Check for Leaks
Use this list to visually inspect your Jeep for potential fluid leaks:
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Look for pinkish buildup or crust—could signal coolant leaks
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Pay attention to coolant smells even when parked
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Common leak point in 3.6L Jeeps
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Check underneath the intake manifold and down the back of the engine
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▢ Rear Main Seal
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Inspect where the engine meets the transmission
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Oil buildup or dripping may indicate failure
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▢ Front and Rear Differentials
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Check around the diff covers, pinion seals, and axle shafts
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Look for gear oil leaks and splatter on undercarriage
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▢ Transmission and Transfer Case
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Watch for red or dark brown fluid at the rear or center of your Jeep
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Inspect around the output shaft and tail housing
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🧰 Additional Maintenance Must-Dos
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▢ Tire Rotation (every 5,000 miles)
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Helps prevent uneven wear
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While rotating, inspect brake pad thickness
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▢ Inspect Brake Pads
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Every 12,000 miles
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Replace if worn or cracked
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▢ Air Filter Replacement
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Every 15,000–30,000 miles
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Replace sooner if driving in dusty/off-road conditions
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▢ Undercarriage Care
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Inspect skid plates, suspension, fuel/brake lines, and mounts for damage
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▢ Check for Fluid Cross-Contamination
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Never mix coolant types (green and orange/pink)
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Watch for signs of milky oil (could indicate coolant leak into oil)
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🔧 Pro Tip:
Regular inspections can help you catch leaks and worn components before they cause serious (and expensive) damage. Keep a log of maintenance dates and fluid changes!
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