What is the best fuel type to use? Just looking for opinions "Marines I see as two breeds, Rottweilers or Dobermans, because Marines come in two varieties, big and mean, or skinny and mean. They're aggressive on the attack and tenacious on defense. They've got really short hair and they always go for the throat." -RAdm. "Jay" R. Stark, US Navy; 10 November 1995.