In addition to the previous post on gearing up and throttling down, reducing the number of tillage and other passes and reducing the depth of tillage are two major ways to save fuel. Primary tillage may require 0.15 to 0.20 gallons more fuel per acre for every extra inch of depth and secondary tillage up to 1/10 more fuel per acre. Remember the rule of thumb that each successive pass should be ½ the depth of the previous tillage for good seed bed preparation. More tips like combining two or more field operations in one pass and reducing turn time can be found at:
Fuel Requirements and Energy Savings Tips for Field Operations
Zane Helsel