Anyone use this sub zero resevoir? What do I put in it? Does it really help and if so how?

 

The one mounted on the firewall over on the passenger side behind the charcoal canister?You don't need it,but if you want to keep it it uses a miture of 90% anti-freeze and 10% water.It is supposed to inject this mixture into the motor when the temperature is below 0 to aid in starting.

 

Actually, MAZDA says to remove it. They put a TSB that it is useless, and doesn;t work. The resevoir qshould be removed, and the actuator removed and fitted with a block off plate.

MAZDA may even do this for you, take it to your delearship.

 

yes it's worthless, mine's been through 2 MN winters w/o it and started up perfectly every time

 

Just rip that **** out, pull off the upper intake manifold and take off the actuator. Block it off or fill it w/ jb weld.