mkirsch wrote:
My 2015 4x4 with 5.3L and 3.08 axle ratio gets slightly better fuel mileage than my old 2003 2WD with 4.8L and 3.42 axle ratio.
Clearly they have made some improvements.
Agree.
Actually, my 2016 5.3 work truck gets the best mileage out of any gas pickup to date, which has been 90% ford gassers. All of them in the last 20 years except Eco boost.
Next best was the Fox 5.0.
I am actually averaging 15mpg or more, commuting and over the road with the 5.3.
Cyl deactivation is seamless although not sure how much it contributes to mileage. The "V4" light seems to only come on downhill, coasting, or very light throttle at moderate speeds like 50-55.
The random deactivation sounds interesting, but more moving parts.
Although I'm warming up to new tech in vehicles. Wife's new SRat is seamless with 8 speed, cyl deactivation, active suspension, steering and shifting, elect brakes and steering and all the fancy traffic monitoring like adaptive cruise, lane keep, active collision avoidance, etc. Hoping it stays trouble free or someone else will own it!
