My 2000 Pontiacf Montana is leading antifreeze a lot! It is supposed to be 20 below 0 and I noticed today that it is leaking much worse. Is there anything I can put over the motor to keep it from getting so cold overnight till I can get someone to look at it?

You can put a lot of blankets on top and a lightbulb or 2 underneath. If it gets that cold you should probably consider a block heater.