ok my truck has needed coolant constantly for 3 weeks straight. I don't see any leaks any where nor do see any puddles of coolant. My truck has been throwing a code P0112 which was the intake temperature sensor. I replaced that clearer the codes but nothing. What could be the issue? I have an 06 f250 6.0 by the way. It has been "bullet proofed" with head studs, new oem gaskets, oil cooler, new ficm, after market cold air intake and the egr has been taken off. I have it tuned as well. Any help is greatly appreciated!'

 

How much is it using?
If it's a small amount I had a radiator hose with a tiny pinhole that would leak steam when the engine was shut down and the coolant temps climbed.
Didn't leave a puddle or drops and even though I circled the hole when the hose was removed you could not see the hole.

 

its using about bout two bottles every 3-4 days.

 

Bottle = ?

 

each bottle has 1 gallon I have been using the Prestone green fluid

 

Head gasket. What does your oil look like?

 

I vote head gasket.

 

Sounds like a head gasket. Also don't use green prestone.

 

don't use that.

There is a way to test for head gasket failure and EGR cooler failure. Pretty easy.

Please come over the 6.0 Forum side, and lets get you more specific help.

 

6.0 cult evangelism!

 

I don't know if you are joking or what....................... I mean I see the party hat smiley, but I still don't know...........The reason I say this is cause its the second time you have posted this type of response in something I have responded too.

 

Put your truck on a pressure test and that will tell you a few things like if leak is internal or you will see it. I was losing coolant also 3 years after studs ect. It was a oil cooler under top of the motor. the coolant side was getting closed and coolant was vaporizing though coolant bottle not gals but a quart or so. replaced oil cooler and bottle. there several other reasons for losing coolant on a 6.0

 

All in good fun friend!

 

Sounds good bud.