Why did my dad put water in my moms car when he checked the oil and water in her car? She pays and drives it.?

I still need 20 answers please.Why did my dad put water in my moms car when he checked the oil and water in her car? She pays and drives it.?
this is called watering the engineWhy did my dad put water in my moms car when he checked the oil and water in her car? She pays and drives it.?
what?? that barely makes any sense..but wat i think ur tryin to say is why did ur dad put water in ur moms car when he was only supposed to check her oil?? the answer is cars require water so it doesnt overheat
Maybe he put water in the battery.
because the cars was thirsty silly
huh?