Objective: To toast the sliced roll for the pizza bread

Which of the following solutions is more sound in terms of naive physics reasoning?

Available choices:
(1). Simply brush on a little vegetable or canola oil, place each halve on a cookie sheet, and toast for 30-45 seconds in your 450 degree oven.
(2). Simply brush on a little vegetable or motor oil, place each halve on a cookie sheet, and toast for 30-45 seconds in your 450 degree oven
(1).