I don't remember anymore. In the early 70's, at Miramar, the start of the "gas crunch" a friend who was a power plant/ airframe mech (Navy) told me what these held for fuel. We figured that in gallons, and even the old 70 440 RR got only 13.8 mpg, we figured one full fuel load of an F-4 at takeoff would run my RR for at least a year, maybe two LOL
At that time I was putting a LOT of miles on that car