Cut this for someone I know. 2011 Ford F150 3.5 ecoboost with about 7k kms on the interval. Looks like it’s starting to get sludged up. I’m going to see if they can cut it back some for the next change. It has 6% remaining on the iolm. Variety of driving, winter, summer, towing and lots of short trips in the city where it’s used as a daily driver.