Here's a UOA report on our 09 Acura RDX with the Honda K23A1 turbo engine. Oil was the original factory fill Mobil 1 5W30. The OLM reported 5% life left after four months and 4.5k miles. The RDX saw about a 60/40 split of highway/city miles including winter runs on heavily salted roads. I expected some higher numbers because of the break in period, but yikes!