They didnt need protection because what you just said never occured, by the way your location says newcastle, has what you said ever happened to you? There is nothing "castle" about, more like a well thought out plan of catastrophe, although an accurate description many newcastle people may argue that "theres nothing wrong with newcastle", but we know better.
Anyway since you took this thread in the wrong direction I will now attempt to get it back on track, as for coolant, my friend likes to use conola oil, It amuses me, it makes me laugh. I personally dont see how this could work, I mean lets face it, it aint gonna make a fat prius slim/swim.
For the this process what you have to do is:
1. get yourself a free range chicken, i dont care how you get it, buy one, catch one, hunt one down with a knife etc.
2. now oil the chicken
3. Move on to the onions, you have to chop them, dice them, stab them into little pieces.
4. brown them
5. add cream
6. reduce
7. reduce
8. reduce till only the bare truth remains exposed to the elements
9. now the prawns, yesterday the prawn was swimming, playing, doing tumble turns in the sea, boil them.
10. place in the oven.
11. change cars coolant.
12. eat the prawn chicken.
-_- :D