Originally Posted by dyn085
Regardless of cost, for hauling 4 adults on grades I would use 93 simply to maintain my sanity. Even just putting one adult in the car is noticeable on flat roads. Even if you normally only use 87, I would bump it up just for the trip.
Agreed with the 1 extra adult. My passengers will be hefty passengers, so that's what got me thinking about this. I'll give it a shot for sure.
2012 Ford Focus SE Sedan, Red Candy Metallic Tinted CC, 5 Speed
SE Sport and Winter Packages, 203A Equipment Group, 17" M&P Wheels
K&N 69-3517TS Intake, Magnaflow 15138 Catback Exhaust, E-RMM, WeatherTech 82573 Window Visors, 35% ON-35 Madico Tint