Forum Discussion
Kayteg1
Oct 25, 2017Explorer II
I heard lot of good about RAM factory air and would I hear that over a year ago, I might not be driving F350 today.
Talking about gearing, I order 3.55 for my dually and never complain about lack of acceleration.
The truck has program that limits the torque on lower gears to avoid frame twisting.
Have been pulling 16% grades with camper and 22% grades empty on 4th gear @ 40 mph.
I think you need 4.10 differential for 30,000 lb setups as today's engine with almost 1000 of torque can pull a lot on high gears.
Fuel consumption is always badly misrepresented on forum.
I usually keep CC at 60 mph with my camper and on good day go >13, on bad day it drops to 11,5.
But occasionally I hit 45 mph highway and mpg goes to 18.
So posting mpg without giving average speed is always fishy.
Too often I see somebody posting "I drive up to 70 mph" and then he post picture of cluster showing average about 35 mph.
New truck computer gives pretty good calculations BTW. I use fuelly and the pump calculation is within 0.2 mpg from computer calculation.
14,000 miles average shows 12.2 on fuelly. Truck driven over 90% with good load.
Talking about gearing, I order 3.55 for my dually and never complain about lack of acceleration.
The truck has program that limits the torque on lower gears to avoid frame twisting.
Have been pulling 16% grades with camper and 22% grades empty on 4th gear @ 40 mph.
I think you need 4.10 differential for 30,000 lb setups as today's engine with almost 1000 of torque can pull a lot on high gears.
Fuel consumption is always badly misrepresented on forum.
I usually keep CC at 60 mph with my camper and on good day go >13, on bad day it drops to 11,5.
But occasionally I hit 45 mph highway and mpg goes to 18.
So posting mpg without giving average speed is always fishy.
Too often I see somebody posting "I drive up to 70 mph" and then he post picture of cluster showing average about 35 mph.
New truck computer gives pretty good calculations BTW. I use fuelly and the pump calculation is within 0.2 mpg from computer calculation.
14,000 miles average shows 12.2 on fuelly. Truck driven over 90% with good load.
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