Pennzoil 5w-20 vs Kirkland 5w-30
- Thread starter Rottyz
- Start date
Lots of thick vs. thin threads already, some no doubt have a side of Kirkland. A search might help.
Flip a coin and change it often.
I tried Kirkland 5w-30 in my Sportage with 2.4 GDI engine and it burned oil from very start. Went back to Pennzoil 5w-30 and lately 0w-30 and it burns very little. Engine didn't burn any till about 90k miles in.
If I owned that engine, I'd choose adequate viscosity and frequent changes over anything else.
Propflux01
$100 Site Donor 2025
5w-30
These engines are prone to fail no matter what you use or maintenance interval. Any 5W-30 at 3K-4K is all you can do. My son has a 2019 Santa Fe w/2.4L Theta II (52K.) Who knows? I change the oil every 4K w/OEM filter.
Brief summary of what's wrong with these engines? Engineering, material?
Whatever you do, lose the 5w-20 oil.
Manufacturing issue. Basically, debris not cleaned out properly from the machining process.
There is a million threads on here about it, plus google will give you enough material on it to keep you up all night....
Triple_Se7en
$50 Site Donor 2024
Soft metallurgy.... mainly connective rod bearings most times deliver the fatal blow.
Oil rings issues eventually drive oil consumption upwards..... sometimes a quart in 350 miles.
Say Adios to the 5w20 and either 10w30 or 0w40 is what I recommend next. Stick with the SP Oil Standard to lessen carbon / soot buildup. Try to find VOAs / UOAs here that show sub-1400 Calcium and Magnesium +500.
I like to see the Phos / Zinc ZDDP levels at least 1300 total. 1500 is more ideal. The cst@100 for Virgin oil at 10-11+ and the UOA total finishing at 8.5-9+.
These are my gauges. Others here may not agree.... as usually the case here at BITOG. Everyone has a different policy oon what's best for the sub-par Korean four cylinders of Theta 2 design.
Oil rings issues eventually drive oil consumption upwards..... sometimes a quart in 350 miles.
Say Adios to the 5w20 and either 10w30 or 0w40 is what I recommend next. Stick with the SP Oil Standard to lessen carbon / soot buildup. Try to find VOAs / UOAs here that show sub-1400 Calcium and Magnesium +500.
I like to see the Phos / Zinc ZDDP levels at least 1300 total. 1500 is more ideal. The cst@100 for Virgin oil at 10-11+ and the UOA total finishing at 8.5-9+.
These are my gauges. Others here may not agree.... as usually the case here at BITOG. Everyone has a different policy oon what's best for the sub-par Korean four cylinders of Theta 2 design.
Forgot to mention. live in Arizona, temps low 100's right now
Triple_Se7en
$50 Site Donor 2024
SP 10w30 and 0/5w40 are good choices for your climate. 
