I had this exact issue--same model year, same engine. The oil consumption is a symptom of a larger problem that is only resolved, at this point, by replacing the engine. I verified this with independent mechanics who would not attempt to rebuild my engine. My car also passed KIA's recall "test," despite the fact that it was burning oil and the engine was pinging because of the fouled catalytic converter. Once that test was completed and the KSDS was updated, as you said, KIA extended the warranty to cover damage caused by rod bearing failure specifically, up to 15 years/150,000 miles. KIA will not repair/replace engines under warranty that are simply burning oil; the engine has to knock and diagnostic code 1326 has to be present in the system. Here's the thing, though: when the oil level drops low enough in an engine, the rod bearings will begin to fail and the engine will knock.
KIA replaced my engine under warranty. My mileage was approximately 120,000 mi.
Here is what I did. I went to a KIA dealership and asked them to conduct an oil consumption test. This provided verification that the correct amount of oil was added on a specific day by a certified technician. The technician also applied tamper-proof putty to the dipstick, filler cap, drain plug, and oil filter. This step was important because it would later prove that I had not drained any oil or tampered with my engine. The dealer told me to return in 1000 miles so that the tech could measure how much oil was lost. I already knew my car was burning excessive oil, though, and I didn't need KIA to tell me that. Instead of returning after 1000 miles, I kept driving the car and did not top-off the oil. The recommended oil change interval for our cars is 7,500 miles, and I knew my car wouldn't make it that far without failure.
After approximately 4,000 miles of driving (longer than I expected to make it!), my oil light came on, my engine sounded terrible, and the check engine light illuminated. Code 1326 was present. I brought my car to the same dealer. After a couple hours of inspection and diagnostic work, the technician verified that my engine met the requirements for replacement. He submitted his report to KIA, which approved my engine for replacement.
The only obstacle I can see for you, unfortunately, is that your car already has 156,000 miles on it. I think your extended warranty may have expired, but please verify this on your own.
The only reasonable solution to this particular problem with our 2.0 GDI engines is replacing the engine. If your engine is burning a quart per week, the damage is done and cannot be fixed by continuing to add oil, cleaning the cylinder head, adding fuel system cleaners, etc.
If you are outside the warranty window, I recommend selling your car to a dealer that will take it to auction and sell it as-is, red-lighted. You will probably get $1,000 - $1,500 for it at best. Please don't sell it privately and deceive the buyer. Unless you absolutely adore your 8-year-old Forte, I don't recommend paying out of pocket to replace the engine. KIA quoted me $9600 for the job, far more than my car is worth.
KIA replaced my engine under warranty. My mileage was approximately 120,000 mi.
Here is what I did. I went to a KIA dealership and asked them to conduct an oil consumption test. This provided verification that the correct amount of oil was added on a specific day by a certified technician. The technician also applied tamper-proof putty to the dipstick, filler cap, drain plug, and oil filter. This step was important because it would later prove that I had not drained any oil or tampered with my engine. The dealer told me to return in 1000 miles so that the tech could measure how much oil was lost. I already knew my car was burning excessive oil, though, and I didn't need KIA to tell me that. Instead of returning after 1000 miles, I kept driving the car and did not top-off the oil. The recommended oil change interval for our cars is 7,500 miles, and I knew my car wouldn't make it that far without failure.
After approximately 4,000 miles of driving (longer than I expected to make it!), my oil light came on, my engine sounded terrible, and the check engine light illuminated. Code 1326 was present. I brought my car to the same dealer. After a couple hours of inspection and diagnostic work, the technician verified that my engine met the requirements for replacement. He submitted his report to KIA, which approved my engine for replacement.
The only obstacle I can see for you, unfortunately, is that your car already has 156,000 miles on it. I think your extended warranty may have expired, but please verify this on your own.
The only reasonable solution to this particular problem with our 2.0 GDI engines is replacing the engine. If your engine is burning a quart per week, the damage is done and cannot be fixed by continuing to add oil, cleaning the cylinder head, adding fuel system cleaners, etc.
If you are outside the warranty window, I recommend selling your car to a dealer that will take it to auction and sell it as-is, red-lighted. You will probably get $1,000 - $1,500 for it at best. Please don't sell it privately and deceive the buyer. Unless you absolutely adore your 8-year-old Forte, I don't recommend paying out of pocket to replace the engine. KIA quoted me $9600 for the job, far more than my car is worth.
