Last week i noticed the coolant was low, i mean really low.

As i was in the garage i just topped it up with water to get me home.

Now as the nights are getting really cold to save me rebleeding the whole system can i just put a bit of neat anti freeze in there to get me by for a couple of weeks?

May sound a bit of an idiot but i'm skint and i don't want it to crack the block
