Question: what is the difference between unleaded petrol 93 and 95?
Answer: However, there isn't much of a difference between 93-Octane and 95-Unleaded petrol. According to Net Star, the numbers 93 and 95 refer to the level of octane contained in the petrol. ... 93-Octane is also the cheaper option of the two, merely because it contains a less amount of the flammable hydrocarbon substance.