This is my mother's car and she does not drive hard; very little serious acceleration and she doesn't speed. Most of her driving is to and from work which is ~20 miles of mainly highway cruising each way. I've driven the car on occasion and worked it a little harder, but that accounts for a small fraction of total use.
Miles on car: 10,002
Miles/Time on Oil: 10,002/11 months
OLM: 20% left
Oil filter: OEM
Air Filter: OEM
NOTE: I absentmindedly forgot to sample during the drain. I had no option but to dunk the sample container into the drain-pan, which, while didn't have any other oil in it, wasn't 100% spotless either. The UOA doesn't seem noticeably affected, fortunately.
Miles on car: 10,002
Miles/Time on Oil: 10,002/11 months
OLM: 20% left
Oil filter: OEM
Air Filter: OEM
NOTE: I absentmindedly forgot to sample during the drain. I had no option but to dunk the sample container into the drain-pan, which, while didn't have any other oil in it, wasn't 100% spotless either. The UOA doesn't seem noticeably affected, fortunately.