1 gallon= 0.003785 m3

volume of diesel oil= 9.0 x 42

= 378

area the oil covers= (378 x 0.003785) / 2.55 x 10^-7

= 5.61* 10^6 m2

volume of diesel oil= 9.0 x 42

= 378

area the oil covers= (378 x 0.003785) / 2.55 x 10^-7

= 5.61* 10^6 m2