Some liquids flow more easily than others do. For example, honey is very “thick” and flows very slowly. Water is very “thin” and flows very quickly. One is more viscous than the other is.
Then, which liquid has more viscosity?
μ = G·t.
The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal concept of "thickness": for example, honey has a higher viscosity than water.
Which has a higher viscosity oil or water?
Viscosity measures the resistance of a fluid to flow. Water flows more easily than vegetable oil at room temperature (20 degrees C). Therefore, at this temperature, vegetable oil has a higher viscosity than water.
Which is more viscous oil or water?
Water is denser than oil. That means for the same mass of oil and water, water has a lower volume. This points to higher inter molecular forces of attraction in water. But oil is more viscous than water so this points to higher molecular forces of attraction in oil.