08-30-2015, 12:53 PM
Bob,
Based on the external measurements of the tank in our 99, Coach 512, I calculate the fuel capacity somewhere around 190 to 200 gallons.
270 could not possibly be correct for my tank.
Also, my gauge, and the VMSPc useage would agree with a tank size of approximately 200 gallons.
To do the measurement calc. Ht x wd x length in inches. I subtracted 1/2 inch from each measurement to allow for a 1/4 thick wall. 1 cubic inch = 0.004329 gallons. So multiply the ht by wd by length by 0.004329 to get a pretty close estimate of the capacity of the fuel tank.
This would also work for waste and fresh water tanks.
Based on the external measurements of the tank in our 99, Coach 512, I calculate the fuel capacity somewhere around 190 to 200 gallons.
270 could not possibly be correct for my tank.
Also, my gauge, and the VMSPc useage would agree with a tank size of approximately 200 gallons.
To do the measurement calc. Ht x wd x length in inches. I subtracted 1/2 inch from each measurement to allow for a 1/4 thick wall. 1 cubic inch = 0.004329 gallons. So multiply the ht by wd by length by 0.004329 to get a pretty close estimate of the capacity of the fuel tank.
This would also work for waste and fresh water tanks.
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)