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XJ Coolant
- Thread starter RShotl
- Start date
- Location
- on the beach in Ocean View, VA
etelene glycol (the green stuff) at a 50/50 mix with distilled water will give the best year round performance
I wouldn't go with a white labeled generic bottle off the local hardware store shelf, but the 4.0 isn't too picky. Get a decent brand of coolant that says it's safe with all types, and a couple gallons of DISTILLED water. A 50/50 mix will be fine, and it is easier to measure it out if it is mixed in a separate container.
Dont forget, after you flush the system, you will have only water left in it. Therefore, take your system total capacity and divide by 2. Add that amount of antifreeze and fill the rest up with distilled water. Of course if you are only draining what you can, then go ahead and fill it with 50/50. An antifreeze tester might be handy to determine the concentration of what's in there.
rockclimber24315
NAXJA Forum User
- Location
- Virginia
Just in case your wondering why everyone says distilled, it's because it has fewer dissolved solids. If you use tap water all kinds of Calcium build up will happen in your engine and radiator, therefore not letting heat tranfer effciently. I wish someone told this to the guy I bought my xj from.
Throttle
NAXJA Forum User
- Location
- A tree fort
rockclimber24315 said:
Yeah same here, 'cept I'm pretty sure I've got one of those XJ's that has just a browny muddy looking rad fluid problem. Its not milky from oil being in it, Its just sludge from using what looks like stream water to top it up from the previous owner :gee:
w_howey
NAXJA Forum User
- Location
- The Mudwest
Throttle said:
That stuff will flush out, using cider vineager as a flush.......
Not my idea. Eagle originally turned me on to it. Works VERY well for that brown/rusty looking stuff.
To the OP, the cooling system hold 12 quarts total. or 3 gallons.
Throttle
NAXJA Forum User
- Location
- A tree fort
w_howey said:
How much cider vineager do I use???
w_howey
NAXJA Forum User
- Location
- The Mudwest
Throttle said:
I used a 1 quart bottle.... Ran the Jeep around for a day with the vinegar in the cooling system and then drained and flushed the engine.
When I refilled I used 'water wetter', coolant and distilled water. Haven't had the problem since.