kevlo Posted July 8, 2010 Share Posted July 8, 2010 Hi guys and girls, can i top up my coolant with normal tap water. I know your meant to use ionised water but my girlfriend is at work and has no access to ionised water. she only has a water dispenser(typical office water bottle thingy) or the tap. i only want her to top it up a cm or two just to take it back above min before driving home. what do you think? Quote Link to comment Share on other sites More sharing options...
Ekona Posted July 8, 2010 Share Posted July 8, 2010 Is there anything left in the tank at all? If so, then just pop to a Nissan dealer and buy a bottle of the proper coolant. The bottle is an overflow reservoir, so as longas there's something in there then you'll have enough in the system. Quote Link to comment Share on other sites More sharing options...
kevlo Posted July 8, 2010 Author Share Posted July 8, 2010 thanks for your quick response. is it definately only a reservoir cos it has a max and min on it? Quote Link to comment Share on other sites More sharing options...
Harman350z Posted July 8, 2010 Share Posted July 8, 2010 If your coolant looks 'strong' then you can top it up with water. for example my coolant is green, and when i open one of the two valves above the rad, it looks thick, by the words of a dealer i was told i was safe to top up with water and next time to maybe use coolant. Quote Link to comment Share on other sites More sharing options...
Ekona Posted July 8, 2010 Share Posted July 8, 2010 Yup, definitely for overflow/expansion only. Those marks are there to cover Nissan in terms of warranty claims more than anything else. Quote Link to comment Share on other sites More sharing options...
Harman350z Posted July 8, 2010 Share Posted July 8, 2010 thanks for your quick response. is it definately only a reservoir cos it has a max and min on it? It is only a resevoir yes, your system is already full of coolant, so basically if it gets short it will pull it out of the res, mine had been below min but was told as long as it werent too far under id be safe. Quote Link to comment Share on other sites More sharing options...
Neilp Posted July 8, 2010 Share Posted July 8, 2010 To have the desired effect of deionised water. Microwave ice cubes to melt them. Old trick from my granda lol Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted July 8, 2010 Share Posted July 8, 2010 i've always topped up with water at the petrol station. Quote Link to comment Share on other sites More sharing options...
ZEDEBY Posted July 8, 2010 Share Posted July 8, 2010 Hi guys and girls, can i top up my coolant with normal tap water. I know your meant to use ionised water but my girlfriend is at work and has no access to ionised water. she only has a water dispenser(typical office water bottle thingy) or the tap. i only want her to top it up a cm or two just to take it back above min before driving home. what do you think? Yep, of course you can, it's ionised water for the battery, tap water is fine as it will only be absorbed by the properties of the glycol in your antifreeze. Watch how much though you don't want to dilute the strength of your antifreeze too much but only an issue when winter comes Quote Link to comment Share on other sites More sharing options...
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