This is what the manual says about the tank:
Fuel tank All models 8.72 US gal (33.0 l) Premium unleaded gasoline:
including a reserve of All models 1.32 US gal (5.0 l) Minimum Posted Octane 91 (Afvg. of 96 RON/86 MON)
So, the 1.32 gallons are included in the 8.72 gallons. Right?
And the gauge has 8 sections, so it is like 1.1 gallons per section total in the tank. I thought it was like a gallon per section...