6.0 Orange/red coolant

[stealthsniper96]

I am looking to buy a used 6.0. I found one that is nice but the pictures online you can see that the coolant is a red/orange color. It doesnt really look like the new motorcraft stuff but its hard to tell. Is anybody familiar with an aftermarket coolant that is that color? I will ask the seller when I call them tomorrow but it is at a used car place so they may not know either.

[HeavyAssault]

Some people have swapped in the International coolant which is red in color.

[Fantom]

I actually wouldn't bring it to their attention. If the previous owner was educated enough to do an ELC swap he may have done headstuds and gaskets that the dealer isn't aware of, and that information may "make it worth more" to the dealer. I'll try and find a picture of what you can look for for studs vs gaskets

It's easier if you look at the passenger side, if you see this, it has factory headbolts. If you see a nut on the end, rather than a bolt head, it has head studs


Take a look at post #6
06 How to tell if head studs were done

[bigmic]

I have ELC (extended life coolant) It's red and HAS NO SILICATE in it. Green and gold coolant has silicate in it and that's the bad stuff causes your oil cooler to clog up. Head studs look like this picture. Look on the drivers side under the Y shaped hose.

[2003kingranch]

my zerex cat/cummins coolant is red.

[sinner6.0L]

I've seen first hand what dexcool can do to a 6.0. if you're buying it from a GM dealer be very suspicious