This is my second time that I upload the report for Blackstone's oil analysis on my Z (2010 Sports).
1. feel so good that I made good choice to go by the Ester.
2. more trust to Nissan I got to have !!
3. really still runs like a new hitting almost 100K miles !!
4. Oil change interval 4K must be better than 5K.
Anyway thanks A LOT for recent low gas prices compared to the previous years in here California.