is tectaloy xp7 a concentrate @ just use it or do you use demineralize water or tap water. what do you guys think of nulon long life concentrate which has antifreeze/antiboil. probably would'nt need in queensland climate. just need some opinions before i spend the money.
thanks andrew.

i find it funny that people claim this coolants great, dont use this one etc. but what proof have people got? what tests have been done etc.
as long as its for alloy engines any coolant should be fine. long as the old coolant is flushed out properly. personally iv used toyota super long life in all of the vehicles iv had due to aquiring it from work. the only complaint i have about it, is its premixed from factory fairly strongly, as it weeps out of hoses etc. never leaks out just weeps and turns crusty. cant say its better than x coolant but iv never had a vehicle over heat while using it so it must be ok. and it lasts 5 years. the only worry in my mind is as it seems so strong that it may eventually weep out of the head or similar. but i have no way to say if this isnt the case with tectoloy or similar generic brands. so il just stick to it.