2018 Sonata - 10,400 miles - 4.5k OCI
Out - HK Synthetic 5w30 & OEM
In - Castrol Syntec 5w30 & OEM
2016 Santa Fe - 65,045 miles - 3k OCI (Changed early while I had time)
Out - Cam2 blend 5w30 & OEM
In - PP 5w30 & OEM
2009 Silverado - 102,400 miles - 6 month OCI
Out - Castrol GTX HM 5w30 & Fram
In - Supertech HM 5w30 & Fram
Out - HK Synthetic 5w30 & OEM
In - Castrol Syntec 5w30 & OEM
2016 Santa Fe - 65,045 miles - 3k OCI (Changed early while I had time)
Out - Cam2 blend 5w30 & OEM
In - PP 5w30 & OEM
2009 Silverado - 102,400 miles - 6 month OCI
Out - Castrol GTX HM 5w30 & Fram
In - Supertech HM 5w30 & Fram