Quote:
Originally Posted by Old Mechanic
I generally run my 18+ gallons tank down to the point where it takes 15-16 gallons to fill.
Any lower and you may cavitate the fuel pump if it is an in tank type. Since the fuel also acts as coolant for the pump running it to empty can cause premature fuel pump failure.
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Just my personal experience: '94 F150, bought new, dual tanks, both with electric fuel pumps.
More often than not, I run a tank until she starts to buck from fuel starvation, then switch tanks.
2012 - 1994 = 18 years of doing that with no fuel system issues whatsoever.
To OP: Run it down to under 1/4 tank before filling up, and halve the number of fuel and time wasting trips to the gas station vs. piddling around with partial tank fills.