Originally Posted By: Hootbro
Originally Posted By: ZeeOSix
............. And for sure use the aftermarket filter that is specified for the vehicle if still under warranty, just in case something does happen and a claim needs to be made against the filter manufacturer.
First of all, I could care less what people do with their cars and the filter they choose.
I am just pointing out the scenario that can play out where KIA can say the aftermarket filter was to blame and the filter maker and say their filter is fine and then what?
My point was, that if someone decides to use an aftermarket filter and something blows up because of a filter issue, then KIA won't care and wont warranty the failure, and will tell the car owner to go get compensation from the filter manufacturer's warranty. Aftermarket filter manufacturers will NOT warranty a filter related failure and resulting engine damage if the filter they spec out for that vehicle is not used. In either case (dealer or aftermarket manufacturer), you'll have a battle on your hands to prove the filter was even the root cause of the engine failure.
Lot's of BITOG members put larger than specified filters on their vehicles, and doing so when the vehicle is still under warranty is adding some risk.
Originally Posted By: Hootbro
As to KIA "under designing" their oiling system, what are they under designing to? Car makers do not design cars to the aftermarket system. The aftermarket system is suppose to design to the OEM.
You missed the point, which was if the oiling system is so sensitive to what filter and oil viscosity is being used, then it could very well be under designed. Maybe the oil pump is really weak in these engines and the pump goes into bypass/pressure relief mode way too easily. Or maybe some of the oiling circuit is already too restrictive and therefore very sensitive to any filter and oil viscosity changes. No, the car manufacturers do not design around aftermarket filter manufacturers ... but if they were smart at least they should consider as part of their design criteria the range of possible filters that could be used on that particular engine.
Originally Posted By: Hootbro
While this TSB is a blanket statement of aftermarket oil filters, it just gives warning to the "potential" and not the "absolute" of what can happen when using an aftermarket filter.
Of course ... the TSB is a blanket CYA for KIA, and probably based on just a few instances that occurred.
Originally Posted By: Hootbro
Me personally, if I was going to use a known quality brand aftermarket filter, I would actually write that filter maker and get them their opinion of using their product and this TSB to just see what they say.
That would be a safe way to go if there is any doubt.