2010stanger

Hay guys!! First winter for my stang is coming and just wanted to know if the stock engine coolant was good for the cold winter it can go down to -40 at times.

2005Redfire6

Should be fine, I ran my OEM coolant through freezing times of the year without a problem!

Art161

You should check the freezing point of the coolant. I don't know what the concentration of antifreeze is for Canadian cars, but the Owner's Guide for US cars says the factory concentration is 50/50. The spec for that concentration does not protect you to -40 degrees.

flash gordon

Where are you in Canada that gets to -40? That's freaking cold!

hammeron

+1


interesting you picked -40*F, because i mostly see -34*F for a 50/50
mixture (with distilled water) when searching for our coolant specs using
CVC-7-A and/or WSS-M97B51-A1.

ym42

It's gonna take a while for it to freeze because the engine's mass. So it would have to stay at -40 for a couple of days... If the temperature dips to -40 for a couple of hours at night it's gonna be no problem even if the coolant is only good to say -35...

Stoenr

Get autostart, set to start car every 4 hours automatically, LOL
or engine block heater would be the typical fix for people regularly in that kind of climate

157dB

+1
Mass
Get the optional engine heater...