Abrams equipped with 1500-hp gas turbine engine, operates on variety of fuels (gasoline, diesel, jet fuel). Gas turbines are more powerful than diesel engines, but guzzle fuel at a very high rate. Abrams can travel up to 30 mph cross-country, but even with a digital fuel economy system, it still consumes about one gallon per mile. Gas Turbine - en.wikipedia.org/wiki/Gas_turbine

With huge 490 gallon fuel tanks, cruising range is about 260 miles. Due to this limitation, fuel trucks usually follow closely M1 battlefield advances. By mid-1990s, fuel recuperators were installed to preheat air take for faster energy conversion inside the engine compressors. Cooler M1 Tank Engines - www.g2mil.com/abramsdiesel.htm

Left-wing anti-war groups asserted 1991 Gulf War was one gigantic war profiteering by US government and American oil corporations. They cited that oil prices was about $15/barrel before the war, and rose to $42/barrel when the war ended (by 2006, oil prices shot up to $70/barrel). Oil profits from this price spike generated about $60 trillion revenue, thus a $30 trillion profit resulted, out which $9 trillion went straight to American oil companies' coffers they did not pay any extra war tax. Gulf War - en.wikipedia.org/wiki/Persian_Gulf_War

Other anti-war groups stated that standard oil profits taxed by US amounted to $21 trillion. Since estimated war cost was about $10 trillion, they accused US of making $11 trillion profit from this military venture.