2012 Chrysler Town and Country
This van is new to me; 90k at purchase. Was using E85 in Colorado because price so much lower. Now, traveling in another state with NO E85 or even 85 octane, I've noticed much higher mpg. Is this typical and to be expected? The fill-up was over $80 with 87 pricing - quite the shock after E85 in Colorado. Is 87 better for my engine?