cesar robalino , finance and public credit minister , announced one gallon -lrb- 3.8 liters -rrb- of `` extra '' gasoline -- which , despite its name , is the most common and most widely used -- would rise on 29 january from 1.46 sucres to 2.50 sucres -lrb- from $ 0.70 to $ 1.20 -rrb- .