My parents have a 2012 Camry, 4 cyl with 62,000 miles. Since new, they have followed the local dealership recommendation of 10k OCI's at the dealership with Toyota synthetic oil and OEM filter of course. So, they have only had 6 oil changes. Their driving is probably 90% highway and nothing that would meet the severe categories. I'm still having a hard time getting used to the idea of 10k. Does this sound reasonable with this oil, on this car?