SUBJECT:
AFTERMARKET OIL FILTERS AND OIL VISCOSITY
During engine research & development, the engine lubrication system is designed to operate at specific volumes and pressures to keep the reciprocating & rotary components properly lubricated. Kia
-designed genuine oil filters meet the various requirements for proper filtration, leak down, oil flow rate and pressure variations to ensure the optimal performance of the engine lubrication system.
The use of aftermarket oil filters or improper oil viscosity could result in less than optimal filtration, leak down, oil flow rate and pressure variations. Some of the symptoms and concerns that may arise with use of aftermarket filters or wrong oil viscosities include, but are not limited to:
- Low Oil Pressure With Warning Light On
- Engine Knocking Noise
- Valve Train Noise
- Cold Start Engine Noise
- Whistle Noises
The use of substandard oil filters or improper oil viscosity may lead to the above-listed symptoms or engine damage. Kia does not test aftermarket filters and recommends the use of Kia genuine parts that are designed to operate at the specifications set forth during engine lubrication design and testing to ensure optimal engine lubrication system performance.
If the engine oil has been changed recently and a noise condition has developed, perform an inspection of the oil filter and/or customer oil change maintenance records to help in determining if a substandard aftermarket filter or the wrong oil viscosity was used. If the vehicle has the wrong oil viscosity or is equipped with a suspected substandard aftermarket oil filter, recommend to the customer that they authorize an oil and filter change using the correct oil grade / viscosity and a replacement Kia genuine oil filter, at the customer’s expense, to attempt to alleviate these symptoms. Additionaly, inform the customer that correct oil viscosity information is included in the vehicle’s Owner’s Manual.
- Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
- Helps protect critical engine parts for up to 10,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
- Delivers 40% stronger wear protection than industry standards to reduce friction and improve fuel economy
- Provides 15% better deposit defense vs. industry standards, keeping engines cleaner for smoother performance and longer-lasting protection
- Up to 2.5X better heat protection vs. industry standards to fight harmful sludge formation and thermal breakdown
- Engineered for excellent low-temperature flow, reducing metal-to-metal contact during cold starts — when most engine wear typically occurs
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- Better Wear Protection
- Increased Fuel Efficiency. Royal Purple Motor Oil Is Both Fluid And Lubricant
- Better Protection Of The Expensive Catalytic Emission System
- Improved Compatibility With Fuels Containing Ethanol
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
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