Let’s hear your best MPG and driving style ?

Cat said that the best MPG is achieved when you are running at the RPM WHERE THE HIGHEST TORQUE IS ACHIEVED. We ran a 100 PRM above that suggestion. For us that was ~60mpg! We found lower elevations resulted in higher MPG. When the sulfur content of the fuel was reducing we lost ~0.3 to 0.5 mpg. We log all fuel mileage. We also set Tire pressure per the tire manufacturers recommendation based on 4 corner weights. We ran a TPMS to monitor tire pressure. We rarely utilized full acceleration starts.