Find the volume of machine oil if its weight is 2.7 kg.

The amount of engine oil can be calculated using the formula:
V = m / ρ, where V is the required volume of engine oil, m is the mass of engine oil (m = 2.7 kg), ρ is the density of engine oil (we take the density of engine oil ρ = 900 kg / m³).
Let’s calculate the required volume of engine oil:
V = m / ρ = 2.7 / 900 = 0.003 m³ = 3 dm³ = 3 liters.
Answer: The volume of engine oil is 3 liters.