Aren't both petrol and water liquid form?

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I don't understand why even in such advanced technological age, we still are not able to transport water intact, each and every time I see a water lorry or a water tanker carrying water, water keeps spilling or pouring out from all corners, some people say its related to centre of gravity and that it is designed in such a way that it has let out some water in order to balance while riding and things like that...I have never seen a petrol tanker spill even a drop of petrol anywhere from its surface, then why couldn't that be applied to water, water is more precious isn't it, I wonder if its is the same everywhere or only in India