Mobil 1 EP and premium gas. My 2.7 Base Sas just went over 16,500 today. Since December 8 2022. On the highway it can do 22-23 easy. The very hardest wheeling 15-16. I hammer it a lot! Yes that was me coming home on hwy 101 today, blasting the passing lanes. I pass fast and hard. It's hard for...