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Overflow tank empty

mkd8919

Member
Joined
June 2, 2014
Messages
22
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0
City, State
Nebraska
Year, Model & Trim Level
1993 Explorer XLT 4x4
Hey Everyone,

I received my explorer from my dad about a year a go now. The other day I was filling the wiper fluid, and decided to look at the coolant as well. I checked the overflow tank and it was bone dry. I always thought it had coolant before but I believe it was just stained. At first glance it looks like it has coolant in it now. I haven't had any issues that I know of over the past year with the cooling system. The heater works well, and the temp guage is rock solid on the N in normal while warm. I feel like the overflow tank is supposed to always have a little coolant in it though, correct? How would I go about resolving this? Do I add coolant to the radiator while cold, or just add it to the overflow tank? I know both the radiator and the thermostat have been replaced and the coolant was flushed at that point, but I don't remember how long ago that was, I think about 4 years now. Also, since I've never added coolant to this before, do I need special type? Or is "green" fine? Thanks!
 






arco777

Elite Explorer
Joined
April 6, 2008
Messages
2,407
Reaction score
55
Year, Model & Trim Level
1994 Explorer 2dr 4x4
No special coolant is required. I usually top up the radiator when cold, then fill the overflow tank to the Cold Fill line.
 






Wolfie_85

Well-Known Member
Joined
April 20, 2014
Messages
498
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City, State
Iowa
Year, Model & Trim Level
1994 Ford Explorer XLT
Definitely stick to conventional green! It's cheaper and less problematic. :)
 






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