I went to change the oil yesterday in my sister's 2016 Hyundai Accent. It's a 1.6L naturally asperated GDI engine, with a 3.7 quart sump. When I changed it last winter, I filled it from a 5 qt. jug of PP 5w-20 and put a fram Ultra on it. 7500 miles later, I had about 1.5 quarts of PP left from the first oil change and some bottles of Magnatec 5w-20 in the garage.
Long story short, it's got about half PP and half Magnatec, both 5w-20. I didn't think much of it at the time, but now I'm having second thoughts. Are these two oils incompatible? Could there be issues with long-term performance (7,500 miles/6 months) with a mix from two different brands?
Long story short, it's got about half PP and half Magnatec, both 5w-20. I didn't think much of it at the time, but now I'm having second thoughts. Are these two oils incompatible? Could there be issues with long-term performance (7,500 miles/6 months) with a mix from two different brands?