2011 Buick Regal CXL, w/ 2.4 NA motor
57,800 miles
4400 miles on the oil
Out: 5W-30 AC Delco dexos1 oil, AC Delco filter
In: the same
The fourth and last of my CPO oil changes from when I bought the car. I forgot to bring an oil sample bottle, so no UOA this time. Next change, December-January, I will either use the free OC coupon I have from the Buick dealer; or give in, go to Walmart, buy the QSUD, and give that a spin.