Home Forums Gear Hunting Trucks and Four-Wheel Drives 5.3 fuel mileage

I have a 2014 Silverado crew cab with the 5.3- I average around 19 mpg overall with my driving, I’ve noticed on the highways I get anywhere from 21-23 mpg depending on the speeds (don’t go much over 70 for fuel efficiency). That fluctuates a bit too, depending on how long it’s been since I changed the oil. I have 98,000 miles on mine, this week I put just under $1400 in it for the AC and a window repair, gonna keep it another year or two.