KBB.com 10 Most Awarded Brands. Only 55,237 Miles! Scores 20 Highway MPG and 16 City MPG! This Jeep Wrangler JK Unlimited boasts a Regular Unleaded V-6 3.6 L/220 engine powering this Automatic transmission. WHEELS: 18" X 7.5" POLISHED SATIN CARBON (S...