My 2011 has never seen 89 Octane so far

My 2004 never saw 89 Octane in 50,000 miles either

Right from the owners manual

87 Octane Acceptable. 89 Octane
Recommended.







Component Fluid, Lubricant, or Genuine Part Capacities
Fuel Selection
3.7L, 4.7L
87 Octane 1500 Regular Cab
Shortbed/Crew Quad
Cab - 26 Gallons
(98 Liters) 1500
Regular Cab
Longbed/Crew Quad
Cab (Optional) -
32 Gallons (121 Liters)
2500/3500 Shortbed -
34 Gallons (129 Liters)
2500/3500 Longbed -
35 Gallons (132 Liters)
Fuel Selection
5.7L
87 Octane Acceptable. 89 Octane
Recommended.
1500 Regular Cab
Shortbed/Crew Quad
Cab - 26 Gallons
(98 Liters) 1500
Regular Cab
Longbed/Crew Quad
Cab (Optional) -
32 Gallons (121 Liters)
2500/3500 Shortbed -
34 Gallons (129 Liters)
2500/3500 Longbed -
35 Gallons (132 Liters)