601Turbz Member 111 Member For: 13y 7m 11d Gender: Male Posted 13/08/12 07:03 AM Share Posted 13/08/12 07:03 AM (edited) It ain't gonna hurt changing the coolant to quality one from any local supercheap auto or repco. The factory coolant is cheap and a weak solution that does turn brown. Why not change it to something that will be far better in summer that will last. only takes 10 minutes for a full flush and refill. Personally I wouldn't use anything less than a Tectalloy 90plus. 5ltr for $20.***You will require at least 6 Litres*** Edited 13/08/12 07:07 AM by 601Turbz 1 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 18y 6m 25d Gender: Male Location: Perth Posted 13/08/12 07:06 AM Share Posted 13/08/12 07:06 AM It turns yellow because:A: It's crap coolantB: The blocks are sand cast and 10000k's seems to be just about enough time to wash the residual sand particles out of the cooling system.Also +1 for Tectalloy 90+ for post mix or Castrol Radicool for Premixed 1 Link to comment Share on other sites More sharing options...
cizzink11 Member 352 Member For: 11y 8m 17d Gender: Male Posted 15/08/12 02:21 PM Share Posted 15/08/12 02:21 PM I bought my ute at 31--k's basically brand new, the coolant was a lush bright green. I have owned it for exactly a week today and its already starting to change color and it looks like a multi layered shot glass in the overfill tank.Might try this so called Tectalloy 90+ this weekend with a full flush out. Can I do a quick flush with tap water? I really don't want to for the sake of rust in the pipes but would it be ok just to get the rest of the sh*t out? Link to comment Share on other sites More sharing options...
spinr33 Donating Members 964 Member For: 12y 8m Posted 15/08/12 03:12 PM Share Posted 15/08/12 03:12 PM Hey mate is yours an auto or manual before anyone else jumps in ? Link to comment Share on other sites More sharing options...
Wenier Donating Members 1,736 Member For: 14y 2m 30d Gender: Male Location: Christchurch, New Zealand Posted 15/08/12 04:12 PM Share Posted 15/08/12 04:12 PM What you on about with rust in the pipes, are you meaning because of running some water through it? Link to comment Share on other sites More sharing options...
601Turbz Member 111 Member For: 13y 7m 11d Gender: Male Posted 16/08/12 01:02 PM Share Posted 16/08/12 01:02 PM I bought my ute at 31--k's basically brand new, the coolant was a lush bright green. I have owned it for exactly a week today and its already starting to change color and it looks like a multi layered shot glass in the overfill tank.Might try this so called Tectalloy 90+ this weekend with a full flush out. Can I do a quick flush with tap water? I really don't want to for the sake of rust in the pipes but would it be ok just to get the rest of the sh*t out?No tap water! Use rain or demineralised and cycle it through and then flush it out. You're not ment to mix different types of coolants at all. Link to comment Share on other sites More sharing options...
bjc Donating Members 2,812 Member For: 20y 7m 14d Gender: Male Location: Townsville Posted 17/08/12 12:30 AM Share Posted 17/08/12 12:30 AM Isn't demineralised water supposed to be used only because it has a higher boiling temp? Every mechanic I have seen only use tap water for servicing! Link to comment Share on other sites More sharing options...
Wenier Donating Members 1,736 Member For: 14y 2m 30d Gender: Male Location: Christchurch, New Zealand Posted 17/08/12 02:24 AM Share Posted 17/08/12 02:24 AM for flushing it out tap water probably would be fine, your not keeping it in there. Think the issue with it is whats added to it and can cause things like calcium buildup or something like that. Link to comment Share on other sites More sharing options...
601Turbz Member 111 Member For: 13y 7m 11d Gender: Male Posted 17/08/12 02:25 AM Share Posted 17/08/12 02:25 AM Isn't demineralised water supposed to be used only because it has a higher boiling temp? Every mechanic I have seen only use tap water for servicing!I think it's to protect that aluminium radiators, as tap water contains all sorts of additves that can corrode over time. Demineralised water is free from these. 2 Link to comment Share on other sites More sharing options...
bjc Donating Members 2,812 Member For: 20y 7m 14d Gender: Male Location: Townsville Posted 17/08/12 05:29 AM Share Posted 17/08/12 05:29 AM Yeah I've seen them stick the hose in to flush it out but they also just fill up from the same tap! I would have thought that the coolant itself is supposed to suppress all that corrosion, calcium etc from forming?Either way the Demineralised water is cheap as chips from coles or woolies!!! Link to comment Share on other sites More sharing options...
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