PQIA is a fantastic resource and I appreciate all their efforts. Does anyone know if blends have ever been compared side by side? Curious
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HYUNDAI
14 Sonata 2.4L, Shell Rotella T5 10W-30 / 4000 oci
13 SFS 2.0Turbo, Mobil Delvac 15W-40 / 3000 oci