Fuel Oil Tank Chart
How to Stick your fuel oil tank to determine an approximate amount of gallons that are in it.
To measure your oil tank, you will need a fuel oil tank stick which will coincide with this chart. You can purchase a fuel oil tank stick at most Hardware or Plumbing Supply Companies & Big Oak Fuel also. They typically cost less than $20. Most every one has the 275H tank.Green left of chart.
Click the image below for
a full size chart
a full size chart
To measure the amount of fuel oil in under ground or above 
ground outdoor oil tank:
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Remove your oil fill cap and insert the stick into the tank until it reaches the bottom.
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Remove the stick and take note of the amount of oil in inches that is showing on the stick.
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Compare the number of inches on your stick with your fuel oil tank size on the chart to determine an estimated amount of gallons.
