Hello all! Just bought my first Jeep, a 1997 TJ 2.5L manual. The Jeep came with 16” rims outfitted with Goodyear Wrangler 265/75R16 tires. My question is: using a GPS speedometer I can only get going about 70mph with the pedal to the floor and my gas mileage is atrocious on the freeway. Is there a better tire as far as getting improved freeway speed and gas mileage? How bad are the wheels that I currently have hurting my performance? My main objective with the Jeep is a fun summer vehicle with the top off that I can take from southwest MI to norther MI often on the weekends and therefore a lot of freeway driving between those two points. Don’t plan on doing much hardcore off-roading. Thank you in advance for your recommendations!