On a side note, is it normal for the coolant reservoir to be that low at 76k miles? I just purchased this jeep a few weeks ago and noticed that the coolant was low. Its also not blowing out any hot air when I have it cranked up to the max, and the temperature gauge seems to flucuate from the mid point to nearly the red, which may be caused by too little coolant (i hope).
**Update** The source of the leak ended up being a bad coolant intake gasket. After replacing that and refilling the coolant, no more leaks and lava hot heat!!
Is it tremendously important to use distilled water for the 50/50 part?
If you use tap water the minerals and crap will collect in the system. The smallest passages are in the radiator, so that's where most of it will collect, clogging it. It's not the end of the world if you topped it off, but don't make it a habit because eventually it'll come back and bite you in the form of an overheating engine and most likely a new radiator. Either buy the 50/50 premixed or mix it yourself with distilled water...I haven't actually compared the prices to see which is cheaper.
Water actually does the cooling, not antifreeze...that's just a chemical to assist in heat transfer and to raise the boiling point and lower the freezing point.
Utah Jeep Crew #148
No powerball here? How am I supposed to finance the mods?!?
'12 Sport...miss my YJ for all the wrong reasons though