I live in the middle of no where, ground water, lakes, streams etc don't exists around here....we have a river a few miles away and about 500ft down a canyon....

Its no more irresponsible, then the thousands of house boats we have on the water here, leaking oil, fuel, sewage into the lake.....my little bit of coolant that comes out with the house water isn't going to effect anything...

Now if you live in an urban city, don't do this and allow it to run down the gutters of the street....that may cause harm...

Not arguing here, but you should go out and look at what we do to the earth, I can snap a few photos of the washes here, where the rock is permanently stained black by all the crap that washes off the roads and down into the river..

We can say how "irresponsible" it is for me to do something...but man there is muchhhhh worse things out there killing the environment.....we also have a huge coal burning power plant here...

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