Recently installed a new oil cooler and BPD EGR cooler in my 2005 F-250. Used the Ford Premium Gold after the upgrade and EOT is back in the 195 range. After more exhaustive reading, I'd like to switch to ELC coolant, but don't want to risk my new oil cooler by flushing.

How would I go about switching coolant and minimizing the risk of stirring up garbage and clogging the new oil cooler? Should I wait until the next flush interval to do this? I am currently running a coolant filter.

 

Flush it with straight water several times then flush it with 12-16 gallons of distilled water AFTER the water runs clear. Also, if you are concerned about trash in your oil cooler then follow the reverse flush method posted by nylyon. It involves hooking a connection up between the oil cooler and EGR cooler but you don't have to worry about your cooler plugging again.

 

same here just rinse with water till clear and refill with the ELC with 3.5 gallons full strength to achive 50/50

I wouldnt rrun any chemicals and stir up a Hornets Nest


What brand coolant did you go with

 

Still trying to locate concentrated ELC, not as easy to find as I thought it would be.

 

The new oil cooler has less than 100 miles on it, so I don't believe it's been compromised yet. This should make the reverse flush unnecessary, correct?

 

If your around an oreily auto parts they have the stuff in my Sig

 

what is this ELC stuff and should I be using it?

 

ELC=Extended Life Coolant

I like the fact the stuff I use is silicate Free

 

The only caution I have to offer with the elc is if you'r still under warranty. Use the elc and have a cooling problem and you may find yourself with a voided warranty. No flames or debating please. Just stating facts.

 

Not something I have had to do to someone yet for elc.

 

You appear to be a staight shooter as do other techs here. Not all dealerships are created equal.

 

Well outside of warranty, so thats not an issue.
I'd be interested to know what coolant the techs are using in their 6.0. Would you mind sharing your choice?

 

ford gold. with ro/di water only.
0 issues with cooling system to date.
change it out about every 15k miles...
if for no other reason then the coolant is basicly free left overs.

 

dex cool that goes in chevy's is a ELC coolant. an its silicate free coolant. Would it b a good choice to use. MY wife drive a 04 GMC Yukon so i have a few gallons in shed.

 

DO NOT use Dexcool. Do a google search for dex cool class action suits. It attacks gaskets and many plastic parts, such as most gm intakes. JMHO