antifreeze 1.6

[MG-JOCKEY]

hey guys i am going to change the antifreeze on my zs 110 my question is do i use OAT or just the blue stuff? how many litres do i need?
cheers
john

[BUCKYDEVIL]

use the O.A.T, are you just draining the coolant reservoir bottle or bleeding the system ?
If bleeding the whole system you need to be very carefull of airlocks when filling again.

[MG-JOCKEY]

use the O.A.T, are you just draining the coolant reservoir bottle or bleeding the system ?
If bleeding the whole system you need to be very carefull of airlocks when filling again.

yeah mate i am draining the whole system. whats the best way off bleeding the air out? any help is much appreciated.
cheers
john

[BUCKYDEVIL]

I havent done the full system myself but believe the best way is to have it vacum filled
Or from what I have read try this.
Put heater to hot, take off expansion cap, undo bottom rad hose- allow to drain.
Flush through expansion tank with cold water on slow, until clear water seen.
Flush rad from top hose with cold water.
Undo 8mm bleed screw, fill until steady stream from bleed hole.
Close the bleed screw and fill tank to halfway between min and max.
Left the cap off and start engine, checked that heater is blowing hot.
Retop up and bleed again through 8mm bleed screw.
Run until fan comes on, .
the amount of O.A.T needed is about 4.5/5 litres.

[MG-JOCKEY]

I havent done the full system myself but believe the best way is to have it vacum filled
Or from what I have read try this.
Put heater to hot, take off expansion cap, undo bottom rad hose- allow to drain.
Flush through expansion tank with cold water on slow, until clear water seen.
Flush rad from top hose with cold water.
Undo 8mm bleed screw, fill until steady stream from bleed hole.
Close the bleed screw and fill tank to halfway between min and max.
Left the cap off and start engine, checked that heater is blowing hot.
Retop up and bleed again through 8mm bleed screw.
Run until fan comes on, .
the amount of O.A.T needed is about 4.5/5 litres.

thanks mate i will be doing that tomorrow. well if the rain stays away lol.
cheers
john

[pheelay]

What is the advantage of OAT over any other generic coolant. I know it was specified by manufacturer, but why?
Reason I ask is I can't find the stuff over here easily so its got green stuff in there at the mo.