Engine - Engine Noise w/Aftermarket Oil Filters

Model All Model

Group Engine Mechanical System(12)

Number KT2007121201

Date Wednesday, December 12, 2007

Area N. America

Subject
Aftermarket Oil Filters & Engine Noise Complaints

- Description

During engine research & development, the mechanical engine lubrication system is designed to operate at specific volumes and pressures to keep the reciprocating & rotary components properly lubricated. Kia has assigned specific guidelines for the use of oil filters (Cartridge / Spin-on) and oil viscosity to conform to; filtration, leak down, oil flow rate and pressure variations, to keep the lubrication system at optimal performance.

The use of aftermarket oil filters/ o-rings / improper oil viscosities could result in less then optimal filtration, leak down, oil flow rate and pressure variations due to different oil filter designs and construction. Some of the symptoms and concerns that may arise with aftermarket filters / wrong oil viscosities include:

- Valve train Noise

- Engine Knocking Noise

- Cold Start Engine Noise (2-7 seconds duration)

- Idle / Cruise Engine Noise

- Whistle Noises

Kia recommends the use of Kia genuine parts that are designed to operate at the specifications set forth during engine lubrication design and testing. 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 you in determining if an aftermarket filter or the wrong oil viscosity was used. If the vehicle is equipped with an aftermarket oil filter, perform an oil change and filter with the correct oil grade / viscosity and a replacement genuine Kia oil filter at the customer's expense.

Note:
This is not a warranty repair and any related damage is not warrantable, nor is changing the engine oil and filter to isolate this condition.