Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSKIA2011OPTIMA L4-2.0L TURBOREPAIR AND DIAGNOSISMAINTENANCEFLUIDSTECHNICAL SERVICE BULLETINSENGINE/A/T - FLUSHING SYSTEMS NOT RECOMMENDED
2011 Kia Optima L4-2.0L Turbo
Engine/A/T - Flushing Systems Not Recommended
2011 Kia Optima L4-2.0L TurboSECTION Engine/A/T - Flushing Systems Not Recommended
Model All model
Group General Information(10)
Number KT2008082501
Date Monday, August 25, 2008
Area N.America
Subject
Flush System Information
- Description
Vehicles produced by Kia Motors Corporation do not require the Engine, Transmission, "Power Steering and Cooling System to be power flushed. Kia vehicles are designed to give thousands of miles of trouble free service if all recommended maintenance intervals are followed by the customer with a simple drain and refill. The use of fluid flush exchangers is not required nor recommended by Kia.
Listed are a few disadvantages of power flush machines:
^ Flush systems add unnecessary maintenance expense not required by the manufacture to maintain the warranty.
^ Flush systems can contaminate the lubrication system
^ Cross contamination is not covered by warranty
^ Flush systems can leave behind solvents and residue which can degrade the new replaced lubricant, also can degrade the seals and gaskets
^ Flush systems have not proved longer durability results
^ Kia vehicles require special lubricants, unless each machine is truly dedicated to each specific lubricant they should not be used for regular service intervals.
* Kia does recommend flushing the oil cooler during A/T replacement, refer to the appropriate Transmission TSB.
Group General Information(10)
Number KT2008082501
Date Monday, August 25, 2008
Area N.America
Subject
Flush System Information
- Description
Vehicles produced by Kia Motors Corporation do not require the Engine, Transmission, "Power Steering and Cooling System to be power flushed. Kia vehicles are designed to give thousands of miles of trouble free service if all recommended maintenance intervals are followed by the customer with a simple drain and refill. The use of fluid flush exchangers is not required nor recommended by Kia.
Listed are a few disadvantages of power flush machines:
^ Flush systems add unnecessary maintenance expense not required by the manufacture to maintain the warranty.
^ Flush systems can contaminate the lubrication system
^ Cross contamination is not covered by warranty
^ Flush systems can leave behind solvents and residue which can degrade the new replaced lubricant, also can degrade the seals and gaskets
^ Flush systems have not proved longer durability results
^ Kia vehicles require special lubricants, unless each machine is truly dedicated to each specific lubricant they should not be used for regular service intervals.
* Kia does recommend flushing the oil cooler during A/T replacement, refer to the appropriate Transmission TSB.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.