Dissolve yeast and sugar in warm water. (You can do this in 1 cup and then add the rest of the warm water to the batch)
To the yeast mixture, add salt, vegetable oil and 3 cups flour
Add more flour, 1/2-1 cup at a time until the dough no longer clings to the side of the bowl.
Put dough onto counter and knead until it is smooth and elastic.
Place in greased bowl, turning once to coat the entire dough mixture
Let dough rise until it is double, then punch down
Let the dough rise again, and then punch it down again
Grease bread pans and shape dough into loaves.
Put melted margarine or vegetable oil on top of loaves
Prick each loaf in several places.
Let rise until double
Bake at 350 for 30 minutes or until done.