Before my new Tahoe LTZ, I owned a 2012 Ford King Ranch F150 4x4 with the 5.0L V8 engine. It's typical fuel milage was 13.0 mpg when running errands and 15.3 mpg on the highway using cruise control. That's the best the F150 ever got moving its 5400 lbs. down the road.
Before the F150 I owned a 2012 Jaguar XF with the 5.0L V8 that produce 385 HP with the six-speed automatic transmission. That vehicle was quite peppy and was difficult to keep one's foot out of it because it was so quick and sounded so good under throttle. Despite my driving habits with the Jag and its 4100 lbs. of weight, I still managed 19 mpg running around and 24 mpg on the highway. Not bad for a lead foot enjoying a healthy V8.
What has surprised me is the 2015 Tahoe LTZ, with a 5.3L V8 and six speed automatic transmission, manages to deliver a consistent 19 to 20 mpg running around doing errands and delivered 24.4 mpg as its best highway mileage so far. Considering the Tahoe weighs just over 5300 lbs., I consider the highway mileage to be excellent for a vehicle of its size and weight.
The photo below was taken this afternoon of the Tahoe's information center after driving Marlene to a doctor's appointment and back home(25 miles round trip), then into Live Oak to the pharmacy, the bank, and then back home (28 miles round trip). I averaged 20.5 mpg during todays drive. Naturally I'd be happy to get twice that mileage but for a full size SUV that is good fuel mileage. I attribute this directly to GM's new 5.3L Ecotec3 engine with direct injection and active fuel management that deactivates four cylinders when extra power isn't needed. It works seamlessly and I think the fuel mileage for this class of vehicle speaks for itself. Color me happy.
So, how's your fuel mileage?
