Yes, the Allison was an option. The 8.1 is actually de-tuned to work with the 4L-80E if you don’t have the Ally.
Which diesel truck lasts the longest?
1) 2020 Ford F-150 Ford covers the F-150 with a warranty for 3 years or 36,000 miles, and the PowerStroke diesel drivetrain for 5 years or 100,000 miles. The 3.0-liter PowerStroke engine delivers 440 pound-feet of torque, driving the F-150 through a 10-speed automatic transmission.
How often should Allison transmission fluid be changed?
If an odometer is used to determine when to change the transmission fluid and filters, this specific vehicle would change the fluid every 42,000 miles (66 000 km) and filters every 21,000 miles (33 000 km).