KBB.com 10 Most Awarded Brands. Delivers 24 Highway MPG and 17 City MPG! This Ford Explorer boasts a Regular Unleaded V-6 3.5 L/213 engine powering this Automatic transmission. ENGINE: 3.5L TI-VCT V6, Wheels: 18 5-Spoke Sparkle Silver-Painted Alum, V...