*2016* Jeep Renegade in sig (they probably had a hard time reading my hand writing on the slip...). Chrysler 2.4 Multi-Air engine. Roughly 70/30 highway/city. Fairly heavy stop and go during AM commute, but rarely gets short tripped. The oil was in service for 8 months, and I only had to add 1/2 quart make-up oil. Kind of weird about the silicone being so high, I did change the air filter a few thousand miles ago, but the air box is sealed up tight, no leaks I can see. Thoughts?