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[azzbo]

 :)any joy dude sussed it yet

[TheBoy]

:)any joy dude sussed it yet

Sorry, other things have taken precedence this evening, so haven't even looked.

[curly]

hi mate,if you add to much antifreeze to the system it can slow the cooling down as it becomes thicker the hotter it gets,so on omegas normally the coolant should run at 50% which normally equates for a v6 3litres to be added on a complete drain off,2litres on 2.0ltr&2.2 16v drain&refill,i take it you have some form of blockage/corrosion?overheating?little trick i have used more so older cars were heater rads block is buy a bottle of caustic soda,get an old watering can/bucket,add 50%water (cold)then carefully add 50%of the soda toit and it builds up heat add it slowly to the empty system and fill it till just see it in header tank leave 4 15mins release from system,dont start engine with this in??get garden hose and flush out crap,then back flush it from the hose that released it,,curly up through header tank,if you had a blockage that should sort it,note do not get the solution on skin as it burns ok mate

[TheBoy]

hi mate,if you add to much antifreeze to the system it can slow the cooling down as it becomes thicker the hotter it gets,so on omegas normally the coolant should run at 50% which normally equates for a v6 3litres to be added on a complete drain off,2litres on 2.0ltr&2.2 16v drain&refill,i take it you have some form of blockage/corrosion?overheating?little trick i have used more so older cars were heater rads block is buy a bottle of caustic soda,get an old watering can/bucket,add 50%water (cold)then carefully add 50%of the soda toit and it builds up heat add it slowly to the empty system and fill it till just see it in header tank leave 4 15mins release from system,dont start engine with this in??get garden hose and flush out crap,then back flush it from the hose that released it,,curly up through header tank,if you had a blockage that should sort it,note do not get the solution on skin as it burns ok mate

I am concerned that caustic soda may be too strong. I'm going to try Fernox (central heating cleaner first).  If that doesn't work, I may well try the caustic soda